terryh NCI 2006-02-13T09:33:00 Mesenchymal Stem Cell Mesenchymal_Stem_Cell Astragalus Astragalus Middle Thyrohyoid Ligament Middle_Thyrohyoid_Ligament small intestine Small Intestine Small Bowel Gastrointestinal Tract, Small Intestine Small_Intestine Opening of the Thorax Opening_of_the_Thorax Lateral Wall of the Bladder Lateral Wall of Bladder Lateral_Wall_of_the_Bladder Cardia_Gland Cardia Gland Tract_of_Lissauer Tract of Lissauer Corpus Callosum Corpus_Callosum White_Matter The nerve tissue forming the bulk of the deep parts of the brain and the superficial parts of the spinal cord. It is composed of nerve cell processes, i.e. extensions (axons), which connect various grey matter areas of the brain to each other and carry nerve impulses to and from the nerve cell bodies within the central nervous system (neurons). Cerebral and spinal white matter does not contain dendrites. White matter is distinguished in that it is composed of axonal nerve fibers covered by a myelin sheath. White Matter Lateral Horn of the Spinal Cord Lateral_Horn_of_the_Spinal_Cord Basophilic_Erythroblast Basophilic Erythroblast A nucleated red blood cell that stains readily with basic dye. Postganglionic_Autonomic_Fiber postganglionic fiber Postganglionic Autonomic Fiber Autonomic Fibers, Postganglionic Nerve fibers which project from cell bodies of autonomic ganglia to synapses on target organs. (MeSH) The distal portion of the upper extremity. It consists of the carpus, metacarpus, and digits. Hand Hand Peroneus Longus Peroneus_Longus Middle Temporal Sulcus Middle_Temporal_Sulcus A stem cell obtained from the umbilical cord. --2005 Umbilical Cord Blood Stem Cell Umbilical_Cord_Blood_Stem_Cell Minor Salivary Gland Minor_Salivary_Gland Dorsal_Cochlear_Nucleus Dorsal Cochlear Nucleus Juxtamedullary Nephron Juxtamedullary_Nephron Ascending_Parietal_Convolution Ascending Parietal Convolution Extremity Part Extremity_Part Transverse Colon Transverse_Colon Anterior Wall of the Bladder Anterior Wall of Bladder Anterior_Wall_of_the_Bladder Basal_Ganglia Large subcortical nuclear masses derived from the telencephalon and located in the basal regions of the cerebral hemispheres. (MeSH) Basal Ganglia The superficial nerve tissue of the spinal cord. It is composed of nerve cell processes, i.e. extensions (axons), which connect various grey matter areas of the spinal cord to each other and carry nerve impulses to and from the nerve cell bodies within the central nervous system (neurons). Spinal white matter does not contain dendrites. White matter is distinguished in that it is composed of axonal nerve fibers covered by a myelin sheath. White_Matter_of_the_Spinal_Cord White Matter of the Spinal Cord Striatum Striate Body Corpus Striatum Striped gray and white matter consisting of the neostriatum and paleostriatum (globus pallidus). It is located in front of and lateral to the thalamus in each cerebral hemisphere. The gray substance is made up of the caudate nucleus and the lentiform nucleus. The white matter is the internal capsule. (MeSH) Corpus_Striatum Lateral Infratentorial Cistern Lateral_Infratentorial_Cistern Nitrergic_Neuron Nitroxidergic Neurons Nitrergic Neurons Nitrergic Neuron A nerve cell that uses nitric oxide as its neurotransmitter. Haversian_Canal Osteonal Canal Haversian Canal Foot Interosseous Muscle Foot_Interosseous_Muscle Sigmoid Colon Sigmoid_Colon Juxtaglomerular_Apparatus Juxtaglomerular Apparatus Cellular population adjacent to the renal corpuscle, composed of the macula densa, the juxtaglomerular cells, and the extraglomerular mesangial cells. It regulates the blood pressure by activating the renin-angiotensin-aldosterone system. Carotid Cistern Carotid_Cistern Dorsal Curve Dorsal_Curve Atlanto-Occipital Joint Atlanto-occipital_Joint Hippocampus Hippocampus Superior Cerebellar Artery SCA Superior_Cerebellar_Artery Bladder_Trigone Urinary Bladder Trigone Trigone of Bladder Bladder Trigone Orthochromatophilic Erythroblast A cell derived from a polychromatophilic erythroblast in bone marrow. It has a dense nucleus and its cytoplasm is approaching the color of a mature erythrocyte. It differentiates into a reticulocyte when it extrudes its nucleus. Orthochromatophilic_Erythroblast White_Commissure White Commissure Spinal_Accessory_Nerve Spinal Accessory Nerve Hydatid_of_Morgani Hydatid of Morgani Hair_Papilla Hair Papilla Cardia Orifice Cardia_Orifice Right_Colon Right Colon Joint of the Pelvic Girdle Joint_of_the_Pelvic_Girdle Dorsal Horn of the Spinal Cord Dorsal_Horn_of_the_Spinal_Cord Atlanto-axial_Joint Atlanto-Axial Joint Epithelial_Stem_Cell Epithelial Stem Cell Common_Thymocyte A lymphocyte found in the thymus. It is a precursor to a mature T-lymphocyte. Common Thymocyte cerebellum Cerebellum Cerebellum Tragus Tragus Superior Surface of the Bladder Superior Surface of Bladder Dome of the Bladder Dome of Bladder Dome_of_the_Bladder Polychromatophilic Erythroblast Polychromatophilic_Erythroblast White_Fiber White Fiber Palatoglossus Muscle Palatoglossus Palatoglossus_Muscle Mucosa-Associated_Lymphoid_Tissue Lymphoid tissue located beneath the mucosal epithelia of those mucosal surfaces that have contact with the external environment, such as the respiratory, digestive, and urinary systems. MALT consists of a collection of predominantly small lymphocytes, fewer larger, transformed lymphocytes, and plasma cells. It protects the body from pathogens that enter via the mucosa. MALT gives rise to a distinctive type of B-cell lymphoma that usually follows an indolent clinical course. Mucosa-Associated Lymphoid Tissue MALT Lymphoid Tissue, Mucosa-associated Hyaline Cartilage Hyaline_Cartilage Lateral Domain of the Epithelium Lateral_Domain_of_the_Epithelium Hair Root Hair_Root Nerve fibers which project from parasympathetic ganglia to synapses on target organs. Parasympathetic postganglionic fibers use acetylcholine as transmitter. They may also release peptide cotransmitters. (MeSH) Postganglionic Parasympathetic Fiber Parasympathetic Fibers, Postganglionic Postganglionic_Parasympathetic_Fiber Superficial Vein of the Hand Superficial_Vein_of_the_Hand Glomerular Basement Membrane GBM A sheet of amorphous extracellular material upon which the basal surfaces of epithelial cells rest and is the covering surface of a glomerular capillary, interposed between the cellular elements and the underlying connective tissue. Glomerular_Basement_Membrane Dorsal_Muscle_of_the_Back Dorsal Muscle of the Back Popliteal_Artery_Branch Popliteal Artery Branch colon Large Intestine Colon The part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted. Colon Middle_Mediastinum Middle Mediastinum Laryngeal_Muscle Laryngeal Muscle Horizontal_Cell_of_Cajal Horizontal Cell of Cajal A small fusiform neuroglial cell arranged horizontally in the molecular layer of the cerebral cortex. Knee Joint Knee_Joint Oculomotor_Nerve Third Cranial Nerve Oculomotor Nerve Cranial Nerve III Bone Marrow Stem Cell with Predominant Neutrophil Differentiation A primitive, undifferentiated blood cell which can undergo division and usually gives rise to a white blood cell in the neutrophil lineage. Bone_Marrow_Myeloid_Stem_Cell_with_Predominant_Neutrophil_Differentiation Superficial Vein Superficial_Vein Spermatic_Vein Testicular Vein Spermatic Vein Internal Spermatic Vein Superior Anastomotic Vein of Trolard Superior_Anastomotic_Vein_of_the_Trolard Adult Stem Cell Mostly multipotent undifferentiated stem cells found in a specific tissue admixed with differentiated cells. --2005 Adult_Stem_Cell Upper Lobe of the Kidney Kidney Upper Lobe Kidney_Upper_Lobe Atlas_of_the_Vertebra Atlas of the Vertebra Glenoid Fossa Glenoid_Fossa Popliteal Vein Popliteal_Vein Dorsal_Nucleus_of_the_Vagus_Nerve Dorsal Nucleus of the Vagus Nerve Cecum Cecum Laryngeal Ventricle Laryngeal_Ventricle Middle Occipital Convolution Middle_Occipital_Convolution Hippocampal Sulcus Hippocampal_Sulcus Olfactory Nerve First Cranial Nerve Cranial Nerve I Olfactory_Nerve Burr_Hole burr hole Burr Hole Kinocilium Kinocilium Masseteric Vein Masseteric_Vein Dorsal Region of Foot Dorsal_Region_of_Foot Hip Joint Hip_Joint The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses. Organ System, Neurologic Neurologic Organ System Neurologic Body System Nervous System Body System, Neurologic Nervous_System Kidney Posterior Surface Kidney_Posterior_Surface appendix Vermiform Appendix Appendix Vermiform_Appendix Glans_Clitoris Glans Clitoris Middle Temporal Convolution Middle_Temporal_Convolution Hippocampal Fissure Dentate Fissure Hippocampal_Fissure Large Non-Cleaved Follicle Center Cell Centroblast An activated B-lymphocyte found in the germinal centers. It has a large nucleus without clefts, finely dispersed chromatin, and a rim of basophilic cytoplasm. Large_Non-cleaved_Cell Nose Nose A structure of special sense serving as an organ of the sense of smell and as an entrance to the respiratory tract. A lymphoid cell of follicular center cell origin that has an irregularly shaped nucleus with clumped chromatin, absent nucleoli, and one or more clefts in the nuclear membrane. Small Cleaved Follicle Center Cell Small Cleaved Cell Small_Cleaved_Cell Otolith Otolith Superficial_Middle_Cerebral_Vein Superficial Middle Cerebral Vein Globus_Pallidus Globus Pallidus The representation of the phylogenetically oldest part of the corpus striatum called the paleostriatum. It forms the smaller, more medial part of the lentiform nucleus. (MeSH) Buccal_Surface The surface of the tooth facing or in direct contact with the oral mucosa of the cheek. Buccal Surface Buccal Dorsal Root of the Spinal Nerve Dorsal_Root_of_the_Spinal_Nerve Gland_of_Wolfring Gland of Wolfring Lower Lobe of the Kidney Kidney Lower Lobe Kidney_Lower_Lobe Epencephalon Epencephalon Occipital_Bone Occipital Bone Laryngeal Ligament Laryngeal_Ligament Middle_Temporal_Gyrus Middle Temporal Gyrus Otolymph Otolymph Superficial Palmar Arch Superficial_Palmar_Arch Transversus Abdominis Transversus_Abdominis Outer_Enamel_Epithelium Outer Enamel Epithelium Epithelium derived from the ectoderm of the dental lamina. It is found on the upper part of the bell or cap of the enamel organ of the developing tooth and is composed of cuboidal cells. Radix_Dentis Root of the Tooth Root of Tooth Radix Dentis Epithelia of lung alveoli. The layer of cells covering the lining of the tiny air sacs at the end of the bronchioles. Lung Alveolar Epithelia Alveolar Epithelium Alveolar_Epithelium Hilum of the Kidney Hilum of Kidney Hilar Area of the Kidney Hilar Area of Kidney Hilar_Area_of_the_Kidney Trachea Lamina Propria Trachea_Lamina_Propria Cavum_Conchae Cavum Conchae Conjunctival_Epithelium Conjunctival Epithelium Recto-Vaginal Pouch Pouch of Douglass Recto-Vaginal_Pouch Other_Specified_Parts_of_Pancreas Other Specified Parts of Pancreas Skeletal Muscle Fiber Skeletal Fiber Skeletal_Fiber Male Breast Male_Breast Multipotent_Bone_Marrow_Stem_Cell_with_Wide_Myeloid_Potential A specialized, self-renewing cell in the bone marrow that has the capacity to differentiate into a cell with a particular function, but especially a myeloid progenitor cell. Multipotent Bone Marrow Stem Cell with Wide Myeloid Potential Thyroid Cartilage Thyroid_Cartilage Mesenteric_Vein Mesenteric Vein Middle_Hemorrhoidal_Artery Middle Hemorrhoidal Artery Outer Hair Cell of the Organ of the Corti Outer Hair Cell of Organ of Corti Outer_Hair_Cell_of_the_Organ_of_the_Corti A cell situated on one of three of the most outer layers of the basilar membrane of the cochlea. Each cell has multiple, sensitive strands called stereocilia. In the resting state the stereocilia are leaning on each other in a conical bundle and are embedded in the tectorial membrane. When the cochlea moves in response to sound, a slight shearing force occurs between the basilar and tectorial membranes, the stereocilia bend and send electrical impulses to the brain via the eighth cranial nerve. Right_Atrium Right Atrium Cartilagenous Tissue Cartilagenous_Tissue Trachea_Cartilage Trachea Cartilage Connecting Segment of the Photoreceptor Cell Connecting_Segment_of_the_Photoreceptor_Cell Recto-Vesical Pouch Recto-Vesical_Pouch Ducts that collect pancreatic juice from thepancreas and supply it to the duodenum. (MeSH) pancreatic ducts Pancreatic Duct Canal of Wirsung Pancreatic_Duct Male_Prepuce Male Prepuce Foreskin Inferior_Rectal_Artery Inferior Rectal Artery Splenius Splenius Sinoatrial_Node Sinoatrial Node S-A Node Pars Triangularis Middle Inferior Frontal Convolution Middle_Inferior_Frontal_Convolution Masseteric_Artery Masseteric Artery Tail of the Pancreas Tail of Pancreas Tail_of_the_Pancreas Rectus Abdominis Rectus_Abdominis Connective Tissue Component of the Peripheral Nerve Connective_Tissue_Component_of_the_Peripheral_Nerve Distal_Phalanx_of_the_Hand Distal Phalanx of the Hand Distal Phalanx of Hand Distal Phalanx of Finger Trachea Submucosa Trachea_Submucosa Ascending Aorta Ascending_Aorta Macula of Utricle Macula_of_Utricle Thyrohyoid Thyrohyoid Nerve endings encased in connective tissue capsules with myelinated or unmyelinated axons. Somatosensory Receptor Somatosensory_Receptor Sinus Sinus A thin fenestrated layer of the pars nervosa retinae adjacent to the outer nuclear layer and through which extend the visual rods and cones. Outer Limiting Membrane Outer_Limiting_Membrane Transitional_Cell transitional cells Transitional Cells Transitional Cell L1_Vertebra L1 Vertebra An undifferentiated cell which can undergo division and can give rise to any of the early stage myeloid cells. Bone_Marrow_Stem_Cell_at_the_Earliest_Stage_of_Myeloid_Differentiation Bone Marrow Stem Cell at the Earliest Stage of Myeloid Differentiation Connective_Tissue_Proper Connective Tissue Proper Connective_Tissue_Fiber Connective Tissue Fiber Body_of_the_Pancreas Body of the Pancreas Body of Pancreas Trachea Smooth Muscle Tissue Trachea_Smooth_Muscle_Tissue Endothelial_Cell The main type of cell forming the lining of blood and lymph vessels and the inner layer of the endocardium. SYN endotheliocyte. endothelial cell Endothelial Cells Endothelial Cell Magendie's Foramen Magendie_s_Foramen Sinus of Valsava Pulmonary Sinus Sinus_of_Valsava Type 1 Helper Cell Th1 Cells Th1 Cell Th-1 Cell Type 1 Helper Cells are a subset of helper-inducer T-lymphocytes which synthesize and secrete interleukin-2, gamma-interferon, and interleukin-12. Due to their ability to kill antigen-presenting cells and their lymphokine-mediated effector activity, these cells are associated with delayed-type hypersensitivity reactions. Type_1_Helper_Cell Outer_Nuclear_Layer_of_Retina Outer Nuclear Layer of the Retina Outer Nuclear Layer of Retina Outer Nuclear Layer Ovarian_Vein Ovarian Vein Thyroid Gland Follicular Cell Thyroid Follicular Cell An epithelial cell lining the thyroid follicles. Thyroid_Gland_Follicular_Cell Rectus Femoris Rectus_Femoris Macula Lutea Macula_Lutea Medulla_Oblongata Myelencephalon Medulla Oblongata The lower portion of the brainstem located between the pons and brainstem. This structure contains several descending and ascending tracts, lower cranial nerve nuclei, a significant proportion of the reticular system of the brainstem and other structures. Sinus, Frontal Frontal Sinus The paired, mucosal lined air spaces located above the orbit and communicating with the nasal passages. Frontal_Sinus Ureteric Orifice Orifice of the Ureter Ureteric_Orifice Common_Ulnar_Vein Common Ulnar Vein Adrenal_Cortical_Cell Adrenal Cortical Cell Carpometacarpal_Joint Carpometacarpal Joint Ascending_Frontal_Artery Ascending Frontal Artery Inducer Cells A subpopulation of CD4+ lymphocytes that cooperate with other lymphocytes (either T or B) to initiate a variety of immune functions. (MeSH) Helper Cells Helper-Inducer_T-Lymphocyte T-Lymphocytes, Helper Helper-Inducer T-Lymphocyte T-Lymphocyte, Helper-Inducer T-Lymphocytes, Inducer Helper T-Cells T-Lymphocytes, Helper-Inducer T-Cells, Helper-Inducer Pancreatic_Vein Pancreatic Vein Outer Plexiform Layer of the Retina Outer Plexiform Layer Outer_Plexiform_Layer Urethra_Epithelium Urethra Epithelium Semitendinosus Semitendinosus Paraurethral Gland Paraurethral_Gland Thyroid_Gland_Lobe Thyroid Gland Lobe Macula_of_Saccule Macula of Saccule Sinus, Ethmoid Ethmoid Sinus Ethmoid_Sinus Cortex Cerebral Cortex Cortex Ascending Aorta Branch Ascending_Aorta_Branch Outer Rod of the Corti Outer Rod of Corti Outer_Rod_of_the_Corti Tympanic_Epithelium Tympanic Epithelium Concha Concha Carpal_Joint Carpal Joint Obturator Vein Obturator_Vein Left Atrium of Heart Left Atrium Left_Atrium Hand_Interosseous_Muscle Hand Interosseous Muscle Thyroid_Gland_Capsule Thyroid Gland Capsule Posterior Wall of the Bladder Posterior Wall of Bladder Posterior_Wall_of_the_Bladder Apertura Sinus Maxillaris Antrum of Highmore Maxillary Sinus Maxillary_Sinus Sinus, Maxillary Antrum Highmori Antrum, Maxillary Antrum of Highmori An almond-shaped group of basal nuclei anterior to the inferior horn of the lateral ventricle of the brain, within the temporal lobe. The amygdala is part of the limbic system. (MeSH) Amygdala Amygdala Ascending Limb of Henle's Loop Ascending_Limb_of_the_Henle_s_Loop Cartilage_Matrix Cartilage Matrix Outer Segment of the Photoreceptor Cell Outer_Segment_of_the_Photoreceptor_Cell Ophthalmic_Plexus Ophthalmic Plexus Thyroid_Gland_Follicle Thyroid Gland Follicle Pronator Teres Pronator_Teres Neck of Bladder Cervix Vesicae Bladder Neck The inferior portion of the urinary bladder which is formed as the walls of the bladder converge and become contiguous with the proximal urethra. Bladder_Neck brain stem Brain Stem Brain_Stem Macula Densa Macula_Densa Middle Ear Middle_Ear Ascending_Frontal_Convolution Ascending Frontal Convolution Carpus_Bone Carpus Bone A cell lining the medullary cavity of bone. Endosteal Cell Endosteal_Cell Left Ventricle Left_Ventricle A natural killer cell, activated by a soluble cytokine released by a lymphocyte in response to an antigen. It is important in immune response. Lymphokine-Activated Natural Killer Cell Lymphokine-Activated_Natural_Killer_Cell Thyroepiglottic_Ligament Thyroepiglottic Ligament Thyroarytenoid_Muscle Thyroarytenoid Muscle Thymic_Epithelial_Tissue Thymic Epithelial Tissue Skin Squamous Cell A flat, scale-like epithelial cell found on the outer covering of the body. Skin_Squamous_Cell Red Fiber Red_Fiber A natural hollow or sinus within the body. Cavity Body Cavity Cavity Right_Ventricle Right Ventricle tumor infiltrating lymphocytes Tumor Infiltrating Lymphocytes Tumor Infiltrating Lymphocyte TIL Lymphocytes, Tumor-Infiltrating Lymphocyte, Tumor-Infiltrating Tumor_Infiltrating_Lymphocyte Endothelium of the Glomerular Capillary Endothelium_of_the_Glomerular_Capillary Lymphoid Follicle Lymphoid_Follicle Other Body Part Other_Body_Part Bone Marrow Stem Cell Committed to the Megakaryocytic Lineage A primitive undifferentiated cell which can undergo division and can give rise to one of the early megakaryocytes. Bone_Marrow_Stem_Cell_Committed_to_the_Megakaryocytic_Lineage Epithelial_Tissue Epithelial Tissue Skin_of_the_Face Skin of the Face Thymus Medulla Thymus_Medulla A mature B-lymphocyte outside the bone marrow. It may be in the general circulation or in lymphatic tissue. Peripheral B-Lymphocyte Peripheral_B-Lymphocyte Recurrent_Artery_of_Heubner Recurrent Artery of Heubner monocyte Monocytes Monocyte Marrow monocyte Blood monocyte Large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles. Monocyte Eparterial Branch of the Right Main Bronchus Eparterial_Branch Metatarsal_Bone_Digit_2 Metatarsal Bone Digit 2 Iliothoracic Iliothoracic Sphenoid Sinus Sinus, Sphenoid Sphenoid_Sinus Primitive_Stem_Cell_with_Some_Degree_of_Commitment_to_the_Erythroid_Lineage Primitive Stem Cell with Some Degree of Commitment to the Erythroid Lineage Hematopoietic_Tissue hematopoietic tissue Hematopoietic Tissue Intraepithelial_T-Lymphocyte Intraepithelial T-Lymphocyte A mature T lymphocyte that migrates into epithelial tissue and contributes to the local and the systemic immune response. Thymus_Cortex Thymus Cortex Glandular Epithelial Tissue Glandular_Epithelial_Tissue Fore-Brain Forebrain Fore-Brain Monocyte_Activated_Killer Plasma is the fluid (noncellular) portion of the circulating blood, as distinguished from the serum that is the fluid portion of the blood obtained by removal of the fibrin clot and blood cells after coagulation. plasma Plasma Plasma Popliteus Muscle Popliteus_Muscle Regular Dense Connective Tissue Connective tissue mainly composed of parallel collagenous fibers leaving little room for embedded fibroblasts. This tissue has high tensile strength, but elasticity and flexibility are limited. Examples are tendons, ligaments and the fasciae and aponeuroses of muscles. Regular_Dense_Connective_Tissue Inferior_Palpebral_Vein Inferior Palpebral Vein Abdominal Aorta Abdominal_Aorta Supraglottis The upper part of the larynx, including the epiglottis; the area above the vocal cords. supraglottis Supraglottis Peripheral_B-Lymphocyte_of_Inner_Mantle_Zone Peripheral B-Lymphocyte of Inner Mantle Zone Skeletal_Muscle_Tissue Skeletal Muscle Tissue Skeletal Muscle Striated muscles that are under voluntary control of the organism. They are connected at either or both ends to a bone and are utilized for locomotion and other movements. Thymic Trabeculae Thymic Trabecula Thymic_Trabecula Abdominal_Aorta_Branch Abdominal Aorta Branch Multipotent Bone Marrow Stem Cell A specialized, self-renewing cell in the bone marrow that has the capacity to differentiate into a cell with a particular function. Multipotent_Bone_Marrow_Stem_Cell Myeloid Cells Myeloid Cell Myeloid_Cell Cells which include the monocytes and the granulocytes. (MeSH) Iliolumbar_Vein Iliolumbar Vein Ilio-Lumbar Vein Refractile Media Dioptric Media Refractile_Media Tongue_Epithelium Tongue Epithelium Metaphysis Metaphysis Long Bone Metaphysis T-Lymphocytes, Suppressor-Inducer T-Lymphocyte, Suppressor-Inducer T-Cells, Suppressor-Inducer Suppressor-Inducer T-Lymphocyte Subpopulation of CD4+ lymphocytes which induce CD8+ suppressor T-cells to suppress antibody production by B-cells. They also stimulate other cellular immune responses. (MeSH) Suppressor-Inducer_T-Lymphocyte Right_Coronary_Artery Right Coronary Artery RIght Coronary Artery Ischiocavernosus Ischiocavernosus A glandular epithelial cell found in the kidney. Renal Cell Renal_Cell Common_Iliac_Vein Common Iliac Vein Vascular Endothelium Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components from interstitium to lumen. (MeSH) Vascular_Endothelium A glandular cell found in the epithelium of the small intestine. Small Intestinal Glandular Cell Small_Intestinal_Glandular_Cell Labial Artery Labial_Artery Common Iliac Artery Common_Iliac_Artery Tongue Skeletal Muscle Tissue Tongue_Skeletal_Muscle_Tissue Circumflex_Branch_of_the_Left_Coronary_Artery Circumflex Branch of the Left Coronary Artery Circumflex Branch of Left Coronary Artery Long_Bone_Epiphysis Long Bone Epiphysis CD8-Positive T-Lymphocyte CD8_Plus_T-Lymphocyte T8 Lymphocytes CD8-Positive Lymphocytes CD8+ T-Lymphocyte CD8+ T Lymphocytes T8 Cells A subpopulation of regulatory T-lymphocytes involved in MHC Class I-restricted interactions. They include both cytotoxic T-lymphocytes and suppressor T-lymphocytes. (MeSH) CELLS.CD8 CD8+ T Lymphocyte CD8-Positive T-Lymphocytes CD8 Lymphocytes CD8 Cell Renal Afferent Vessel Renal_Afferent_Vessel Common_Iliac_Artery_Branch Common Iliac Artery Branch The tissue that generates and conducts electrical signals in the body. It contains the neurons. Nervous Tissue Nerve Tissue Nervous_Tissue Small_Intestinal_Crypt_of_Lieberkuhn Small Intestinal Crypt of Lieberkuhn Thyrohyoid Ligament Thyrohyoid_Ligament Lacrimal_Artery Lacrimal Artery Inferior_Hypogastric_Nerve_Plexus Inferior Hypogastric Nerve Plexus Renal Interstitial Cell A cell of the interstitial tissue of the renal parenchyma. A renal interstitial cell is one of two types. A type I interstitial cell is a fibroblastic cell that is active in the deposition and degradation of the interstitial matrix. It contributes to fibrosis in response to chronic irritation. A type II cell is a macrophage-derived mononuclear cell with phagocytic and immunologic properties. A type II cell is important in antigen presentation. Its cytokines contribute to recruitment of infiltrating cells, progression of injury, and sustenance of fibrogenesis. Renal_Interstitial_Cell Trachea_Basement_Membrane Trachea Basement Membrane Cytotoxic T-Lymphocyte Cell-Mediated Lympholytic Cells T-Lymphocyte, Cytotoxic Cytotoxic T Cells CTL Cytotoxic T-Lymphocytes cytotoxic T cells Cytotoxic T Cell Cytolytic T-Cell Cytotoxic_T-Lymphocyte T-Lymphocytes, Cytotoxic Immunized T-lymphocytes which can directly destroy appropriate target cells. These cytotoxic lymphocytes may be generated in vitro in mixed lymphocyte cultures (MLC), in vivo during a graft-versus-host (GVH) reaction, or after immunization with an allograft, tumor cell or virally transformed or chemically modified target cell. These cells are distinct from natural killer cells and from killer cells mediating antibody-dependent cell cytotoxicity. Renal Efferent Vessel Renal_Efferent_Vessel Slow-Twitch Motor Unit Slow-twitch_Motor_Unit Secretory_Cell One of several types of cells that generate and secrete a substance to be used by the organism. Secretory Cell Thyroepiglottic Muscle Thyro-epiglottic Muscle Thyroepiglottic_Muscle Hand_Digit_Skin Hand Digit Skin Trachea_Basal_Lamina Trachea Basal Lamina T-Cells, Suppressor-Effector Suppressor-Effector T-Lymphocyte Suppressor T Lymphocyte Suppressor Cells T-Lymphocytes, Suppressor-Effector Suppressor-Effector_T-Lymphocyte Subpopulation of CD8+ T-lymphocytes which suppress antibody production or inhibit cellular immune responses. Suppressor-effector cells execute the message received from suppressor-inducer cells. (MeSH) T-Lymphocyte, Suppressor-Effector T Suppressor Cell Left_Coronary_Artery Left Coronary Artery Renal Corpuscle Renal_Corpuscle Longissimus Thoracis Longissimus_Thoracis Skin_Tissue Skin Tissue Tissue composed of three layers- epidermis, dermis and subcutis which protect underlying muscles and organs. Skin is used for insulation, vitamin D production, sensation, and excretion through sweat. Somatostatin Cell of the Pancreas A type of cell in the pancreatic islets that secretes somatostatin. Somatostatin Secreting Cell of the Pancreas Delta Cell of the Pancreas Delta_Cell_of_the_Pancreas Pancreatic Somatostatin Cell Pancreatic Somatostatin Secreting Cell Superior Frontal Gyrus Superior_Frontal_Gyrus Large Intestinal Wall Tissue The tissue of the large intestine. It is composed of four layers - mucosa, submucosa, smooth muscle with inner circular and outer longitudinal layers, and serosa. The mucosa has a large number of goblet cells but does not have any villi. The longitudinal muscle layer is incomplete. The longitudinal muscle is limited to three distinct bands, called teniae coli that run the entire length of the colon. Contraction of the teniae coli exerts pressure on the wall and creates a series of pouches, called haustra, along the colon. Epiploic appendages, pieces of fat-filled connective tissue, are attached to the outer surface of the colon. Large_Intestinal_Wall_Tissue A mature B lymphocyte that expresses IgM and IgD. It is found in peripheral blood, lymph nodes and secondary lymphoid organs, but has not moved into the germinal center of lymphoid organs. Once this cell encounters an antigen in the presence of helper T cells and becomes activated, it moves to the next stage of B-lymphocyte development. Naive Pregerminal Center B-Lymphocyte Naive_Pregerminal_Center_B-Lymphocyte Pelvis The structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates. pelvis Pelvis Pelvic Cavity Reticular_Cell A cell with processes making contact with those of other similar cells to form a cellular network sheathing a network of reticular fibers, which constitutes the stroma of all lymphoid organs except the thymus Reticular Cells Reticular Cell Peripheral_T-Lymphocyte_and_Natural_Killer_Cell Peripheral (Post-Thymic) T-Lymphocyte and Natural Killer Cell Peripheral (Post-Thymic) T-Lymphocyte and NK-Cell Postcentral Gyrus Postcentral_Gyrus Discontinuous_Capillary Sinusoidal Capillary Sinusoid Discontinuous Capillary Genito-urinary_Region Genito-Urinary Region Parietal_Bone Parietal Bone Postganglionic_Sympathetic_Fiber Sympathetic Fibers, Postganglionic Postganglionic Sympathetic Fiber Nerve fibers which project from sympathetic ganglia to synapses on target organs. Sympathetic postganglionic fibers use norepinephrine as transmitter, except for those innervating eccrine sweat glands (and possibly some blood vessels) which use acetylcholine. They may also release peptide cotransmitters. (MeSH) Transverse_Rectal_Fold Transverse Rectal Fold Rib_Head Rib Head Urine urine Urine Urinary System, Urine The fluid that is excreted by the kidneys. It is stored in the bladder and discharged through the urethra. Superior Frontal Convolution Superior_Frontal_Convolution Large Intestinal Submucosa Large_Intestinal_Submucosa The layer of areolar tissue situated beneath the mucous membrane in the distal portion of the digestive tract from the small intestine to the anus. Muscle Muscle; one of the contractile organs of the body. Muscle T-Lymphocyte and Natural Killer Cell T-Lymphocyte and NK-Cell T-Lymphocyte_and_Natural_Killer_Cell Group of lymphocytes. A T-lymphocyte is a white blood cell differentiated in the thymus that possesses highly specific cell-surface antigen receptors. A natural killer cell resembles a T-lymphocyte, but it does not express markers of either T or B cell lineage. Its cytotoxic activity is not antibody dependent. Postcapillary_Venule Postcapillary Venule Direct Pyramidal Tract Direct_Pyramidal_Tract Prostate_Gland_Lobe Prostate Gland Lobe Genu_of_the_Corpus_Callosum Genu of the Corpus Callosum Talus Talus Purkinje Cell The output neurons of the cerebellar cortex. (MeSH) Purkinje's Corpuscles Cerebellar Purkinje Cell Purkinje_s_Cell Purkinje's Corpuscle Purkinje's Cell Purkinje Cells Parathyroid_Gland parathyroid glands Parathyroid Gland Parathyroid Head and Neck, Parathyroid One of two small paired endocrine glands, superior and inferior, usually found embedded in the connective tissue capsule on the posterior surface of the thyroid gland; these glands secrete parathyroid hormone that regulates the metabolism of calcium and phosphorus. The parenchyma is composed of chief and oxyphilic cells arranged in anastomosing cords. White_Adipose_Tissue White Adipose Tissue Adipose tissue that collects, stores and releases fat in the form of triglycerides. It functions as a heat insulator, mechanical cushion and as a source of energy. White adipose tissue is composed of adipocytes that secrete leptin and other substances that effect energy homeostasis. Its distribution in the body is dependent on the sex of the individual. Head of the Fibula Head_of_the_Fibula Blast cells are in an immature (undifferentiated) stage in cellular development, occurring before the appearance of the definitive characteristics exhibited by fully differentiated cells. blasts Blasts Blast Cells Blast Cell Blast_Cell Superior External Articular Artery Superior_External_Articular_Artery A fibroblast that lies between the cartilaginous fibers in the synovial membrane of joints. Synovial_Cell Synovial Cells Synovial Cell Postgerminal Center Memory B-Lymphocyte Postgerminal_Center_Memory_B-Lymphocyte Epineurium Epineurium Metacarpal_Bone_Digit_2 Metacarpal Bone Digit 2 Metacarpal_Bone_Digit_1 Metacarpal Bone Digit 1 Pyramidal Cells Pyramidal Cell Projection neurons in the cerebral cortex and the hippocampus. Pyramidal cells have a pyramid-shaped soma with the apex and an apical dendrite pointed toward the pial surface and other dendrites and an axon emerging from the base. The axons may have local collaterals but also project outside their cortical region. (MeSH) Pyramidal_Cell Trapezius_Muscle Trapezius Muscle Parasympathetic_Nervous_System Parasympathetic Nervous System Posterior Auricular Vein Posterior_Auricular_Vein Oval_Subthalamic_Nucleus Oval Subthalamic Nucleus Oval Nucleus Vomer Vomer Right_Lung_Terminal_Bronchiole Right Lung Terminal Bronchiole Head of the Femur Head_of_the_Femur Superior Constrictor Muscle Superior_Constrictor_Muscle Vocalis_Muscle Vocalis Muscle Organ_System An anatomical structure that consists of organs and organ subclasses responsible for certain body functions. Representative examples are the gastrointestinal system, urinary system, and hematopoietic system. Organ System Body Systems Special_Sense_Organ_System Special Sense Organ System Postcentral Sulcus Postcentral_Sulcus Distal_Convoluted_Tubule Distal Convoluted Tubule Epiphysis_of_the_Bone Epiphysis of the Bone Paranasal Sinus Nasal And Sinuses Nasal cavity/Paranasal Paranasal_Sinus Nasal and Sinuses Paranasal Sinuses Accessory Sinuses Nasal Sinus Sinuses, Nasal Sinuses, Paranasal Nasal cavity/Paranasal sinuses Nasal Sinuses Accessory sinus Type 2 Helper Cells are a subset of helper-inducer T-lymphocytes which synthesize and secrete the interleukins IL-4, IL-5, IL-6, and IL-10. These cytokines influence B-cell development and antibody production as well as augmenting humoral responses. Type 2 Helper Cell Th2 Cells Th2 Cell Th-2 Cell Type_2_Helper_Cell Geniculate Body Geniculate_Body Posterior_Annular_Ligament Posterior Annular Ligament Medial Palpebral Ligament Medial_Palpebral_Ligament Metacarpal_Bone_Digit_4 Metacarpal Bone Digit 4 Head_of_the_Epididymis Head of the Epididymis Portal Triad An anatomical unit of hepatic tissue, composed of an interlobular vein of liver, an interlobular artery of liver and an interlobular bile duct. The triads are embedded in the interlobular connective tissue and travel together throughout the liver parenchyma. Portal_Triad Gland of Moll Gland_of_Moll Epiglottic Cartilage Epiglottic_Cartilage Superior Cerebellopontine Cistern Superior_Cerebellopontine_Cistern Vitreous_Chamber Vitreous Chamber Activated B-Lymphocyte A white blood cell produced in the bone marrow that, due to contact with an antigen, able to proliferate and differentiate into B memory cells, antibody-secreting B-lymphocytes or plasma cells. Activated_B-Lymphocyte Esophagus The portion of the digestive canal between the pharynx and stomach. It is about 25 cm long and consists of three parts: the cervical part, from the cricoid cartilage to the thoracic inlet; thoracic part, from thoracic inlet to the diaphragm; and abdominal part, below the diaphragm to the cardiac opening of the stomach. esophagus Gastrointestinal Tract, Esophagus Esophagus Transitional_Zone_of_the_Prostatic_Parenchyma Transitional Zone of the Prostatic Parenchyma Seminiferous_Epithelium Seminiferous Epithelium Oropharynx oropharynx Oropharynx The part of the pharynx between the soft palate and the upper portion of the epiglottis. Oxyphil Cells Askenazy Cells Oxyphil_Cell Oncocyte A glandular cell with acidophilic cytoplasm that contains tightly packed mitochondria. Oxyphil cells are found in the thyroid gland (Hurthle cells) and parathyroid gland. Oncocytes Oxyphil Cell Oxyphilic Cell Skeletal_System_Part Skeletal System Part Metacarpal_Bone_Digit_3 Metacarpal Bone Digit 3 Postgerminal Center Marginal Zone B-Lymphocyte Postgerminal_Center_Marginal_Zone_B-Lymphocyte Epimysium Epimysium A triangular-shaped unit of hepatic tissue, containing portions of three adjacent hepatic lobules with the portal canal in the center. The portal canal is composed of the portal vein, hepatic artery, bile ductile, and lymph vessel. There is a central vein at the apex of each peripheral corner. Blood flows from the portal vein and hepatic artery towards the central vein. Bile flows in the opposite direction, towards the portal canal. Portal Lobule Portal_Lobule Head and Neck Muscle Head_and_Neck_Muscle Maxilla The upper jawbone in vertebrates: it is fused to the cranium. Maxilla Vitreous_Body Vitreous Body Superior Cerebellar Cistern Superior_Cerebellar_Cistern Seminal_Vesicle_Epithelium Seminal Vesicle Epithelium optic nerve Second Cranial Nerve Optic Nerve Optic_Nerve Epidermal_Ridges Rete Ridges Epidermal Ridges Epidermal Ridge Portal_Venous_System Portal Venous System Metatarsal Bone Digit 1 Metatarsal_Bone_Digit_1 phagocyte amebocyte Phagocytic cell Phagocytic Cell Phagocytes Phagocyte Phagocytic_Cell Gum Gingiva The mucous membrane-covered tissue of the jaws that surrounds the bases of the teeth. Gingiva Germinal_Center_B-Lymphocyte Germinal Center B-Lymphocyte Sweat The liquid secreted by the sweat glands, having a salty taste and a pH that varies from 4.5 to 7.5. Sweat produced by the eccrine sweat glands is clear with a faint characteristic odor, and contains water, sodium chloride, and traces of albumin, urea, and other compounds. Its composition varies with many factors, e.g., fluid intake, external temperature and humidity, and some hormonal activity. Sweat produced by the larger, deeper, apocrine sweat glands of the axillae contains, in addition, organic material which on bacterial decomposition produces an offensive odor. Sweat Visceral Surface of the Liver Visceral_Surface_of_the_Liver Tonsil_Part Tonsil Part Large Intestinal Lamina Propria Large_Intestinal_Lamina_Propria Ileum ileum Ileum Rib Tubercle Rib_Tubercle Transversalis Transversalis Adventitial Cell Pericyte Pericytes Perivascular Cell Rouget Cells Pericapillary Cell Slender, contractile, mesenchymal-like cells found in close association with capillary walls. They are relatively undifferentiated and may become fibroblasts, macrophages, or smooth muscle cells. (MeSH) Pericyte Germinal Epithelium Germinal_Epithelium Infraorbital_Artery Infraorbital Artery Optic Papilla Optic Nerve Head Optic Disk Optic Disc Optic_Disc Epigastric_Region Epigastric Region Gland_of_Krause Gland of Krause Portal_Vein Portal Vein Hepatic Portal Vein Haversian_System Osteon Haversian System Metacarpal Bone Digit 5 Metacarpal_Bone_Digit_5 Interdigitating_Dendritic_Cell A dendritic cell found in the paracortex that captures blood-borne antigens in peripheral tissues and transports them to the periarteriolar lymphoid sheath where initial B and T cell activation takes place. These cells play an important role in cellular immunity. Interdigitating Dendritic Cell Interdigitating Cells Visceral Striated Muscle Tissue Visceral_Striated_Muscle_Tissue Muscle tissue associated with organs such as tongue, pharynx, diaphragm and upper part of the esophagus. It is identical in structure to skeletal muscle tissue. Jejunum Jejunum Small_Intestinal_Lamina_Propria Small Intestinal Lamina Propria Rib Shaft Rib_Shaft Transverse_Fissure Transverse Fissure Internal Thoracic Artery Internal Mammary Artery Internal_Mammary_Artery Corneoscleral Coat Corneoscleral_Coat Trochanter Trochanter Cortex of adrenal gland Adrenal Cortex The outer layer of the adrenal gland. It secretes mineralocorticoids, androgens, and glucocorticoids. (MeSH) Adrenal_Cortex Right_Lung_Alveolar_Duct Right Lung Alveolar Duct Intrinsic Tongue Muscle Vertical Component Intrinsic_Tongue_Muscle_Vertical_Component spleen An organ that is part of the hematopoietic and immune systems. It is composed of the white pulp and the red pulp and is surrounded by a capsule. It is located in the left hypochondriac region. Its functions include lymphocyte production, blood cell storage, and blood cell destruction. Spleen Reticuloendothelial System, Spleen Spleen Calcarine_Artery Calcarine Artery Aryepiglottic_Muscle Aryepiglottic Muscle Duct of the Epididymis Duct_of_the_Epididymis Hepatic Tissue Hepatic Parenchyma Hepatic_Tissue Right Surface of the Liver Right Surface of Liver Lateral Surface of the Liver Lateral Surface of Liver Lateral_Surface_of_the_Liver Head_of_the_Tibia Head of the Tibia Immature_Monocyte Immature Monocyte A cell derived from a myeloid stem cell. It is the representation of one stage of monocyte development. A primitive, undifferentiated blood cell which can undergo division and tends to give rise to a blood cell of the monocyte lineage. Bone Marrow Stem Cell with Some Commitment to Monocytic Differentiation Bone_Marrow_Myeloid_Stem_Cell_with_Some_Commitment_to_Monocytic_Differentiation Enteric_Ganglion Enteric Ganglion Reticuloendothelial System, Thymus The thymus gland is part of the immune system. It is composed of lymphoid tissue and epithelial cells. It consists of two irregularly shaped lobes united by a connective tissue capsule. Each lobe is subdivided by connective tissue septa into lobules, which consist of an inner medullary zone, continuous with the medullae of adjacent lobules, and an outer cortical zone. The cortex is rich in lymphocytes (thymocytes) and the medulla in epithelial cells. This gland is supplied by the inferior thyroid and internal thoracic arteries, and its nerves are derived from the vagus and sympathetic nerves. The thymus is the site of T-lymphocyte production, necessary in early life for the normal development of immunological function. The thymus reaches its greatest relative weight shortly after birth and its greatest absolute weight and maximal development at puberty. It then begins to involute resulting in a slow decline of immune function throughout adulthood. Thymus_Gland thymus Thymus Proper Thymus Gland Thymus Right_Lung_Alveolus Right Lung Alveolus Parametrium The connective tissue of the pelvic floor extending from the fibrous subserous coat of the supracervical portion of the uterus laterally between the layers of the broad ligament. (On-line Medical Dictionary) Parametrium Trigonum_Olfactorium Trigonum Olfactorium Calcaneum Calcaneum Cochlear Organ Cochlea Cochlea Duct_of_the_Gartner Duct of Gartner Articular_Muscle Articular Muscle Ito Cell Hepatic Stellate Cell Hepatic_Stellate_Cell A star-shaped cell in the liver associated with the development of fibrosis. When stellate cells are activated in response to an injury, they proliferate and synthesize large amounts of extracellular matrix which results in deposition of scar or fibrous tissue. Helicotrema Helicotrema Lateral Surface of the Prostate Lateral_Surface_of_the_Prostate Triceps Muscle Triceps Triceps Appendage_of_the_Uterus Uterine Adnexa Appendage of the Uterus The fallopian tubes, ovaries, and supporting ligaments of the uterus. (MeSH) Pineal_Gland pineal organ pineal gland pineal body Pineal Gland Pineal Body Blood Blood is a liquid tissue; its major function is to transport oxygen throughout the body. It also supplies the tissues with nutrients, removes waste products, and contains various components of the immune system defending the body against infection. Several hormones also travel in the blood. (from Wikipedia) peripheral blood Reticuloendothelial System, Blood Peripheral Blood Blood Dorsum_of_the_Tongue Dorsum of the Tongue Irregular Bone Irregular_Bone Articular_Cartilage Articular Cartilage Sacral_Spinal_Nerve_Root Sacral Spinal Nerve Roots Sacral Spinal Nerve Root Helix Auricle Helix Helix Hepatogastric_Ligament Hepatogastric Ligament Triangular Part of the Inferior Frontal Gyrus Triangular_Part_of_the_Inferior_Frontal_Gyrus Renal Tubule Epithelium Renal_Tubule_Epithelium Adrenal Medulla Medulla of adrenal gland The inner part of the adrenal gland; it synthesizes, stores and releases catecholamines. (MeSH) Adrenal_Medulla Tissue responsible for the body movements and the shape and size changes of interna organs. Muscle tissue is composed of specialized contractile cells. There are two types of muscle tissue recognized:striated and smooth muscle. The striated muscle tissue is further subdivided into skeletal, visceral striated, and cardiac muscle. Muscle Tissue Muscle Muscle_Tissue Continuous_Capillary Continuous Capillary Sphincter sphincter Sphincter Intra-Thoracic Lymph Node Intra-thoracic_Lymph_Node Articular Bone Surface Articular_Bone_Surface Hepatic_Vein Hepatic Vein Lumbar Spinal Nerve Roots Lumbar Spinal Nerve Root Lumbar_Spinal_Nerve_Root Hematopoietic and Lymphoid Cell One of the cells of the blood, a leukocyte or erythrocyte. SYN blood corpuscle. Hematopoietic_Cell Liver Hepatic Organ System Body System, Hepatic liver Hepatic Body System The largest gland of the body, lying beneath the diaphragm in the right hypochondrium and upper part of the epigastrium; it is of irregular shape and weighs from 1 to 2 kg, or about 1/40 the weight of the body. It secretes the bile and is also of great importance in both carbohydrate and protein metabolism. Liver Organ System, Hepatic Gastrointestinal Tract, Liver Dura Mater Dura Dura mater - the outermost, toughest, and most fibrous of the three membranes (meninges) that surround and protect the brain and spinal cord. Dura_Mater Irregular_Tubule Irregular Tubule Hepatic Duct Hepatic_Duct Lymphatic_Vessel Lymphatic Vessel Striated_Muscle_Tissue Striated Muscle Tissue Striated Muscle Striated muscles are appendicular and axial muscles typically connected at either or both ends to the bony skeleton of the body. Striated muscle fibers contain a highly organized, contractile cytoskeletal apparatus with a striated microscopic appearance; muscle contraction is typically under voluntary control. Triangular_Ligament Triangular Ligament Pancreatico-Duodenal Vein Pancreatico-Duodenal_Vein Smooth Muscle Tissue Smooth Muscle Smooth_Muscle_Tissue Superior_Frontal_Sulcus Superior Frontal Sulcus Plexiform Layer of the Cerebral Cortex Molecular Layer of the Cerebral Cortex The superficial layer of the cerebral cortex, containing nerve fibers, neuroglial cells, and occasional horizontal cells of Cajal. Molecular_Layer Peripheral Nerves Peripheral Nerve The nerves outside of the brain and spinal cord, including the autonomic, cranial, and spinal nerves. (MeSH) Peripheral_Nerve Lateral_Posterior_Nucleus_of_the_Thalamus Lateral Posterior Nucleus of the Thalamus Epithelial_Reticular_Cell A branched epithelial cell that supports epithelial structures. Epithelial Reticular Cells Epithelial Reticular Cell Ovarian Artery Ovarian_Artery Renal Calyx Renal Calyces Renal Calix Renal_Calyx Epigastric_Artery Epigastric Artery Mons Pubis Mons_Pubis Bronchus Cartilage Bronchus_Cartilage stomach Stomach Gastrointestinal Tract, Stomach The organ located between the esophagus and the small intestine where digestion of food occurs before passing to the small intestine. Stomach Tissue characterized by a thick, random arrangement of collagen and elastin fibers with very few cells. The majority of the cells are fibroblasts, but mast cells and macrophages may also be seen. It is found in the dermis, periosteum, perichondrium, capsules of organs and sheaths of nerves and muscles. Irregular Dense Connective Tissue Irregular_Dense_Connective_Tissue Superior_Hypophyseal_Artery Superior Hypophyseal Artery Pericardiacophrenic_Vein Pericardiacophrenic Vein Superior Hemorrhoidal Artery Superior_Hemorrhoidal_Artery central nervous system Nervous System, CNS Central Nervous System CNS Central_Nervous_System The part of the nervous system that consists of the brain, spinal cord, and meninges. A lymphocyte derived most often from a pre-germinal center B cell, less often from a post-germinal center B cell. It is characterized by an abundant pale cytoplasm, indented nuclei with inconspicuous nucleoli, and open chromatin. It is found in the marginal zones of lymph nodes adjacent to the subcapsular and intermediary sinuses. Monocytoid B-Lymphocyte Monocytoid B-Cell Monocytoid_B-Cell Peritoneal_Cavity peritoneal cavity Peritoneal Cavity The lower part of the abdomen that contains the intestines (the last part of the digestive tract), the stomach, and the liver. It is bound by thin membranes. Ovarian Cortex The outer layer of the ovary, composed of cellular connective tissue which contains the ovarian follicles. Ovarian_Cortex Inferior_Epigastric_Artery Inferior Epigastric Artery Memory_B_Cell Memory B-Lymphocyte Memory B Cell Thoracic_Spinal_Nerve_Root Thoracic Spinal Nerve Roots Thoracic Spinal Nerve Root Lateral_Rectus_Muscle Lateral Rectus Muscle Laryngeal Cartilage The nine cartilages of the larynx, including the cricoid, thyroid and epiglottic, and two each of arytenoid, corniculate and cuneiform. (MeSH) Laryngeal_Cartilage Gastrosplenic Omentum Gastrosplenic_Omentum Islet Cell An Islet cell is a pancreatic cell that produces and secretes hormones such as insulin and glucagon. Islet_Cell Arytenoid_Cartilage Arytenoid Cartilage Bronchus_Basement_Membrane Bronchus Basement Membrane Duct Salivary Gland System The portion of the salivary system that conveys the saliva produced in the acinar salivary gland system to the oral cavity. The duct salivary gland system includes the ductus parotideus, ductus submandibularis, ductus sublingualis major, and ductus sublinguales minores, as well as the ducts from the minor salivary glands. Duct_Salivary_Gland_System Right Lung Bronchiole Right_Lung_Bronchiole Circumflex Iliac Artery Circumflex_Iliac_Artery Ear The organ of hearing: composed of the external ear, which includes the auricle and the external acoustic, or auditory, meatus; the middle ear, or the tympanic cavity with its ossicles; and the internal ear or inner ear, or labyrinth, which includes the semicircular canals, vestibule, and cochlea. (from MSH98) Ear Fibrocartilage Fibrocartilage Superior_Infratentorial_Cistern Superior Infratentorial Cistern Brain, Nervous System Nervous System, Brain Brain That part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord. Brain Skin_of_the_Extremity Skin of the Extremity Phrenic_Vein Phrenic Vein Nerve_Plexus Nerve Plexus Nerve Plexi Outer_Supporting_Cell A cell forming a cup for the outer hair cell of the Organ of Corti. The supporting cell sends out a narrow filament that angles towards the base of the cochlea. The structure is such that the supporting cell touches the outer hair cell only at the top and bottom. Outer Supporting Cell Outer Phalangeal Cell Lateral_Sulcus_of_Sylvius Lateral Sulcus of Sylvius Megakaryoblast Megacaryoblast The precursor of a megakaryocyte. Megakaryoblast Isthmic_Segment_of_the_Fallopian_Tube Isthmic Segment of the Fallopian Tube Arytenoid_Muscle Arytenoid Muscle Modiolus Modiolus Columella Hepatic_Sinusoid Hepatic Sinusoid Ischium Hip Ischium Aryteno-Epiglottic Fold Aryteno-epiglottic_Fold Gastrophrenic_Ligament Gastrophrenic Ligament Bronchus_Basal_Lamina Bronchus Basal Lamina subglottis Subglottis Subglottis Superficial Circumflex Iliac Artery Superficial_Circumflex_Iliac_Artery Head of the Humerus Head_of_the_Humerus Ductus Santorini Ductus Pancreaticus Accessorius Ductus_Santorini Pancreas The pancreas is an organ behind the lower part of the stomach that is the shape of a fish and about the size of a hand. It is a compound gland composed of both exocrine and endocrine tissues. The endocrine pancreas makes insulin so that the body can use glucose (sugar) for energy. The exocrine pancreas makes enzymes that help the body digest food. Spread all over the pancreas are areas called the Islets of Langerhans. The cells in these areas each have a special purpose. The alpha cells make glucagon, which raises the level of glucose in the blood; the beta cells make insulin; the delta cells make somatostatin. There are also PP cells and D1 cells, about which little is known. (from Diabetes Dictionary: http://www.childrenwithdiabetes.com/dictionary) pancreas Pancreas Gastrointestinal Tract, Pancreas Promonocyte Promonocyte Retinal_Vein Retinal Vein Stratified squamous epithelium that covers the outer surface of the cornea. (MeSH) Corneal_Epithelium Corneal Epithelium Parapeduncular Cistern Lateral Supratentorial Cistern Lateral_Supratentorial_Cistern Tympanic Wall of the Vestibule Tympanic Wall of Vestibule Outer Wall of the Vestibule Outer Wall of Vestibule Outer_Wall_of_the_Vestibule Thymic B-Lymphocyte A white blood cell derived from bone marrow precursors which lack any T cell markers. It can give rise to either thymic cortical and medullary progeny, or medullary progeny alone. Thymic_B-Lymphocyte Molar_Tooth Molar Tooth Hepatic Lobule Hepatic_Lobule Temporomandibular Joint Jaw Joint Jaw_Joint Ovarian Tissue Tissue comprised of specialized cells and intercellular matrix, aggregated according to genetically determined spatial relationships in order to carry out the functions of production and ovulation of oocytes and the production and secretion of hormones. Ovarian_Tissue Venous_Sinus Venous Sinus Epididymis Epididymis Small Intestinal Goblet Cell Small_Intestinal_Goblet_Cell A unicellular mucous cell found in the epithelium of the small intestine. Droplets of mucigen collect in the upper part of the cell and distend it, while the basal end remains slender, and the cell assumes the shape of a goblet. Mucosa arranged into two fundamental structures - villi and crypts of Lieberkuhn. Villi are projections into the lumen of the small intestine, covered with simple columnar epithelium. Crypts of Lieberkuhn are moat-like invaginations of the epithelium around the villi that extend through the lamina propria down to the muscularis mucosae. Lymphocytes often invade the epithelium or form solitary lymphoid nodules in the lamina propria. Lymph nodules may form longitudinal aggregations of 30-50 nodules in the lamina propria of the ileum. These large aggregations are called Peyer's patches. The muscularis mucosae has two layers and extends into the intestinal villi, where the smooth muscle cells form a longitudinal bundle in the centre of the villi. The small intestinal mucosa secretes gastrin, somatostatin, cholecystokinin and secretin. Small Intestinal Mucosa Small_Intestinal_Mucosa Bone_Cell Osseous Cell Bone Cell Lymph Node Tissue Tissue composed of specialized cells that are organized as a definite organ, situated along the course of lymphatic vessels, and consisting of an outer cortical and an inner medullary part. The lymph nodes are the main source of lymphocytes of the peripheral blood and serve as a defense mechanism by removing noxious agents, such as bacteria and toxins, and probably play a role in antibody production. Lymph_Node_Tissue Superior Thoracic Artery Superior_Thoracic_Artery Coronary_Valve Coronary Valve That part of the ear canal external to the ear drum External Auditory Canal External Acoustic Meatus Auditory Canal, External External_Acoustic_Meatus Posterior_Spinal_Artery Posterior Spinal Artery Venule Endothelium Venule_Endothelium Cardiac Vein Cardiac_Vein Thyroid Gland Isthmus Thyroid_Gland_Isthmus Toenail Toe Nail Toe_Nail Palatal_Muscle Palatal Muscle Capsular_Ligament Capsular Ligament Longissimus_Capitis Longissimus Capitis Spermatic Cord Spermatic_Cord Genioglossus Genioglossus Small Intestinal Muscular Coat Muscular coat consisting of two layers of smooth muscle - an external, longitudinal, and an internal, circular layer. The longitudinal fibers are thinly scattered over the surface of the small intestine, and are more distinct along its free border. The circular fibers form a thick, uniform layer, and are composed of plain muscle cells of considerable length. The muscular coat is thicker at the upper than at the lower part of the small intestine. Interstitial cells of Cajal are present in the small intestinal muscular coat. Small_Intestinal_Muscular_Coat Superior Temporal Sulcus Superior_Temporal_Sulcus Lymph Node Trabeculae Lymph Node Trabecula The supporting and anchoring strand of connective tissue radiating out from the capsule through the interior of the lymph node. Lymph_Node_Trabecula Labyrinth Internal Ear Inner Ear The portion of the ear located within the temporal bone that is involved in both hearing and balance and includes the semicircular canals, vestibule, and cochlea. (from American Heritage Dictionary online) Internal_Ear Canine_Tooth Canine Tooth Vena_Cava_Endothelium Vena Cava Endothelium Ovarian Follicle Ovarian_Follicle Great_Cardiac_Vein Great Cardiac Vein Subsegmental_Bronchus A part the bronchial tree, an air passage arising from the segmental bronchus and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages. Subsegmental Bronchus Tonsillar_Crypt Tonsillar Crypt Longissimus_Cervicis Longissimus Cervicis Vein_Endothelium Vein Endothelium rectum Rectum The terminal portion of the gastrointestinal tract, extending from the rectosigmoid junction to the anal canal. Rectum The portion of the dental pulp cavity in the root of a tooth, extending from the pulp chamber to the apical foramen. More than one canal may be present in a single root. Canalis Radicis Dentis Canalis_Radicis_Dentis Jugular_Foramen Posterior Lacerate Foramen Jugular Foramen Renal_Interstitial_Tissue Renal tissue consisting of peritubular and periarterial spaces. The relative contribution of each of these two spaces to interstitial volume varies, but increases in size from the cortex to the papilla. In the cortex there is little interstitium because the peritubular capillaries occupy most of the space between the tubules. The cortical interstitial cells and outer medula consist mainly of fibroblastic cells and mononuclear cells. The inner medulla consists primarily of pericytes, lipid-laden cells and mononuclear cells arranged like rungs of a ladder. Renal Interstitial Tissue Coronary_Ligament Coronary Ligament Upper Lobe, Lung Upper Lobe of the Lung Lung Upper Lobe Lung_Upper_Lobe A closed structure surrounded by a single membrane. Vesicle Vesicle Ovarian Medulla The central portion of the ovary, composed of loose connective tissue that contains blood vessels, lymph vessels and nerves. Ovarian_Medulla Joint by Site Joint_By_Site Tonsillohemispheric Artery Tonsillohemispheric_Artery Corticotroph Cell Corticotroph A small, irregularly stellate, acidophilic cell of the adenohypophysis, having small, sparsely distributed secretory granules and secreting adrenocorticotropic hormone and b-endorphin, which are cleaved from a large prohormone called pro-opiomelanocortin. Corticotroph_Cell Lymphatic Capillary Lymphatic_Capillary A bony prominence situated on the upper surface of the body of the sphenoid bone housing the pituitary gland. sella turcica Sella Turcica Sella_Turcica Canal of Schlemm Canal_of_Schlemm Pseudostratified_Columnar_Epithelium Pseudostratified Columnar Epithelium Coronary_Sinus Coronary Sinus Main Bronchus Main_Bronchus Tooth_Cell The cell of the tooth. It includes the odontoblast, cementoblast, cementocyte, and ameloblast. Tooth Cell Cheek Cheek Hyoglossus Muscle Hyoglossus Hyoglossal Muscle Hyoglossus_Muscle Mammary Gland Fluids and Secretions Breast Fluids and Secretions Breast Fluid or Secretion Any of the secretions of the breast. Breast_Fluid_or_Secretion Lymph Node Efferent Vessel Lymph_Node_Efferent_Vessel Arteriovenous_Shunt Arteriovenous Shunt Arteriovenous Anastomosis AV Shunt AV Anastomosis Canal_of_Hering Canal of Hering Crown of the Tooth Crown of Tooth Corona Dentis Corona_Dentis Dorsomedial Nucleus of the Thalamus Dorsomedial_Nucleus_of_the_Thalamus Preputium Penis Prepuce A covering fold of skin, often used alone to designate the preputium penis. (On-line Medical Dictionary) Prepuce Suprachorioid_Lamina Suprachorioid Lamina Lamina Fusca The inner aspect of the sclera, located adjacent to the choroid. It contains thin collagen fibers and elastic fibers, fibroblasts, melanocytes, macrophages, and other connective tissue cells. Lung Lower Lobe Lower Lobe, Lung Lower Lobe of the Lung Lung_Lower_Lobe Merged_Anatomy_Concepts Merged Anatomy Concepts Subsegmental_Bronchus_of_Left_Lung A part the bronchial tree of the left lung, an air passage arising from any segmental bronchus of the left lung and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages. Subsegmental Bronchus of Left Lung Face Face The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw. (MeSH) Tooth_Tissue Tooth Tissue Sternooccipital Sternooccipital Anatomic Sites, Other Anatomic_Sites_Other Lymph Node Hilum Lymph_Node_Hilum Canal_for_Tensor_Tympani Canal for Tensor Tympani Arm Technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb. Arm A cell that serves to provide support and protection and perhaps contribute to the nutrition of principal or other cells of the nervous system. Supporting Cell of the Nervous System Supporting_Cell_of_the_Nervous_System Subsegmental_Bronchus_of_Right_Lung A part the bronchial tree of the right lung, an air passage arising from any segmental bronchus of the right lung and passing to the naturally delimited part of lung segment (subsegment), where it further subdivides into smaller passages. Subsegmental Bronchus of Right Lung Dorsum Dorsum Glans Penis Glans_Penis Middle_Lobe_of_the_Right_Lung Right Middle Lobe, Lung RML Middle Lobe of the Right Lung Torcular Herophilli Torcular_Herophilli Palate Bone Palate_Bone Large_Granular_Lymphocyte large granular lymphocytes Large Granular Lymphocytes Large Granular Lymphocyte LGL Digit Digit Corniculate_Cartilage Corniculate Cartilage EBV-Specific_Cytotoxic_T-Lymphocyte Epstein-Barr virus-specific cytotoxic T-lymphocytes EBV-specific Cytotoxic T-lymphocytes EBV-specific Cytotoxic T-lymphocyte EBV-specific CTL EBV-Specific Cytotoxic T-Lymphocyte A white blood cell that is derived from a lymphocyte stem cell matured in the thymus and characterized by a CD8 marker on the surface and an antigen-specific Epstein Barr virus T cell receptor. Palatine Salivary Gland Palatine_Salivary_Gland Callosomarginal Artery Callosomarginal_Artery Superior_Vestibular_Nucleus Superior Vestibular Nucleus Lymph Node Medullary Portion The central portion of the lymph node. It is divided into sections by tracts of lymphatic tissue called medullary cords. Between the medullary cords are the medullary sinuses, which consist mainly of macrophages that engulf microorganisms as part of the lymph node's filtering function. Lymphocytes and plasma cells are also found in the medullary portion. Lymph_Node_Medullary_Portion Argentaffin Cell An enteroendocrine cell located in the basilar portions of the glands of the gastrointestinal tract. The granules in the cell stain readily with chromium and silver salts without pretreatment with a reducing agent. Argentaffin_Cell Body of the Penis Body of Penis Body_of_the_Penis Levator_Labii_Superioris Levator Labii Superioris Totipotent_Neuroepithelial_Stem_Cell A relatively undifferentiated cell that retains the ability to divide into any type of nerve cell. Totipotent Neuroepithelial Stem Cell Cornu_Ammonis Cornu Ammonis CA Calcarine Sulcus Calcarine_Sulcus An irregular tortuous space within lymph nodes through which a continuous stream of lymph passes entering into the efferent lymphatic vessels. Lymph Node Sinus Lymph_Node_Sinus Superior Vena Cava Opening Superior_Vena_Cava_Opening bone marrow Reticuloendothelial System, Bone Marrow Bone Marrow Bone_Marrow Urethra_Transitional_Cell_Epithelium Urethra Urothelium Urethra Transitional Epithelium Urethra Transitional Cell Epithelium Suprarenal_Artery Suprarenal Artery Gastrointestinal_Tract Gastrointestinal Tract Digestive Tract Alimentary Canal Small_Cardiac_Vein Small Cardiac Vein Respiratory Bronchiole Respiratory_Bronchiole Gastrointestinal Sphincter Gastrointestinal_Sphincter Posterior_Choroidal_Artery Posterior Choroidal Artery Small Intestinal Submucosa Loose, filamentous areolar connective tissue between the muscularis mucosa and the muscular coat of the small intestine. It contains blood vessels, lymphatics, and nerves. The duodenal submucosa contains mucus-secreting Brunner's glands. Small_Intestinal_Submucosa Thyrotroph Cell Thyrotroph Thyrotrope Cell Thyrotrope_Cell Neck The region that connects the head to the rest of the body. Neck Urethral_Gland Urethral Gland Gland of Littre Supraspinatus Supraspinatus Gluteus Medius Gluteus_Medius Middle_Cardiac_Vein Middle Cardiac Vein Posterior Cerebral Artery Branch Posterior_Cerebral_Artery_Branch Reserve_Stem_Cell Reserve Stem Cell Back Back Thyroid_Gland_Tissue Thyroid Gland Tissue T-Lymphocyte_with_a_Post-Thymic_Immunophenotype T-Lymphocyte with a Post-Thymic Immunophenotype Small_Intestinal_Serosal_Surface The thin outermost layer of loose connective tissue covering the outer surface of the small intestine. It is derived from the peritoneum. Small Intestinal Serosal Surface Supramarginal Gyrus Supramarginal_Gyrus Toe Joint Toe_Joint chondrocytes Chondrocytes Chondrocyte Polymorphic cells that form cartilage. (MeSH) Chondrocyte Brachial_Vein Brachial Vein peritoneum Peritoneum The issue that lines the wall of the abdominal cavity, intestine, and mesentery. It consists of the parietal peritoneum that covers the inside of the abdominal wall and the visceral peritoneum that covers the surface of the intestine and mesentery. Peritoneum Geniohyoid Geniohyoid Material containing mucus, cellular debris, microorganisms and sometimes blood or pus. It is ejected through the mouth from the lungs, bronchi, and trachea. sputum Sputum Sputum An inhibitory interneuron in the ventral horn of gray matter of the spinal cord that is held to be reciprocally innervated with a motoneuron so that nerve impulses received by way of processes of the motoneuron stimulate inhibitory impulses back to the motoneuron along an axon of the internuncial cell. Renshaw Cell Renshaw_Cell macrophage Monocytes / Macrophages / APC Macrophages Macrophage Histiocyte Macrophage Smegma Smegma Posterior Carpal Artery Posterior_Carpal_Artery Supra-orbital_Vein Supraorbital Vein Supra-Orbital Vein Toe Toe Endocrine_Sex_Organ Endocrine Sex Organ Coronary Vein Coronary_Vein Stoma stoma Stoma Lingula of the Lung Lingula Renal_Vein Renal Vein Epithelioid Cells Epithelioid Cell Characteristic cells of granulomatous hypersensitivity. They appear as large, flattened cells with increased endoplasmic reticulum. They are believed to be activated macrophages that have differentiated as a result of prolonged antigenic stimulation. Further differentiation or fusion of epithelioid cells is thought to produce multinucleated giant cells. (MeSH) Epithelioid_Cell Wall_of_Body_of_Uterus Wall of body of uterus is composed of three layers: endometrium, myometrium, and perimetrium. Endometrium is the inner mucosal layer lining and is covered with columnar epithelium and tubular glands. Myometrium is a thick, muscular layer, consisting largely of bundles of smooth muscle fibers arranged in longitudinal, circular, and spiral patterns, and interlaced with connective tissue. Perimetrium is the outer layer composed of the peritoneal layer of the broad ligament that covers the body of the uterus and part of the cervix. Wall of Body of Uterus The tissue of the small intestine. It comprises four layers - mucosa with simple columnar epithelium, submucosa, smooth muscle with inner circular and outer longitudinal layers, and serosa. Small Intestinal Wall Tissue Small_Intestinal_Wall_Tissue Tibial_Vein Tibial Vein Sensory Ganglion Sensory Ganglia Clusters of neurons in the somatic peripheral nervous system which contain the cell bodies of sensory nerve axons. Sensory ganglia may also have intrinsic interneurons and non-neuronal supporting cells. (MeSH) Sensory_Ganglion Renal_Capsule renal capsule Renal Capsule Right_Breast Right Breast The hemispheric projection, including the mammary gland, located on the anterior portion of the chest, lateral to the midline, on the side of the body to the east when facing north. Foramen Magnum Foramen_Magnum Vaginal_Squamous_Epithelium Vaginal Squamous Epithelium Connective and Soft Tissue Cell Connective Tissue Cells Connective Tissue Cell Connective_and_Soft_Tissue_Cell A group of cells that includes fibroblasts, cartilage cells, adipocytes, smooth muscle cells, and bone cells. (MeSH) Acromioclavicular_Joint Acromioclavicular Joint Nucleus Tractus Solitarius Nucleus of the Solitary Tract Nucleus of the Tractus Solitarius Gray matter located in the dorsomedial part of the medulla oblongata associated with the solitary tract. The solitary nucleus receives inputs from most organ systems including the terminations of the facial, glossopharyngeal, and vagus nerves. It is a major coordinator of autonomic nervous system regulation of cardiovascular, respiratory, gustatory, gastrointestinal, and chemoreceptive aspects of homeostasis. The solitary nucleus is also notable for the large number of neurotransmitters which are found therein. (MeSH) Solitary_Nucleus Solitary Nucleus Sebum sebum Sebum Urothelium Transitional epithelium lining the renal pelvis, bladder, ureter, and part of the urethra. urothelium Urothelium Transitional Epithelium of the Urinary Tract Left Breast The hemispheric projection, including the mammary gland, located on the anterior portion of the chest, lateral to the midline, on the side of the body to the west when facing north. Left_Breast Vas Deferens Epithelium Vas_Deferens_Epithelium Mature fat cell Adipocytes Mature Lipocyte Lipocytes Adipocyte Fat-storing cells found mostly in the abdominal cavity and subcutaneous tissue. (MeSH) Fat Cells Adipocyte Fat Cell Adipose Cell Reticularis Zone Reticularis_Zone Acromial_Thoracic_Artery Thoracoacromial Artery Acromial Thoracic Artery Clivus The sloping surface from the dorsum sellae to the foramen magnum composed of part of the body of the sphenoid and part of the basal part of the occipital bone. (On-line Medical Dictionary) Clivus Ileocecal Valve Ileocecal_Valve Aspirate Fluid withdrawn from a body cavity, cyst, normal tissue, or tumor. aspirate Aspirate Reticular Fiber Reticular_Fiber Anatomic_Border Border Anatomic Border The boundary of a surface or object. Semen The thick, whitish secretion of the male reproductive organs. It is composed of spermatozoa in their nutrient plasma, secretions from the prostate, seminal vesicles, and various other glands, epithelial cells, and minor constituents. semen Semen Uterus Serosal Surface Uterus_Serosal_Surface renal pelvis Renal Pelvis Renal_Pelvis Arcuate_Nucleus Arcuate Nucleus Megakaryocyte Very large bone marrow cells which release mature blood platelets. Megalokaryocyte Megakaryocytes Megakaryocyte Blood megakaryocyte Space_of_Fontana Space of Fontana Base_of_the_Skull Base of the Skull Base of Skull A white blood cell that, after being in contact with an antigen, rearranges its DNA to defend against that one specific type of antigen. After activation, it can then proliferate and differentiate into memory cells, antibody-secreting cells or plasma cells. Activated Lymphocyte Activated_Lymphocyte Sphincter_of_Oddi The muscle fibres around the opening of the common bile duct (ductus choledochus) into the duodenum at the papilla of Vater. Sphincter of Oddi Oddi's Sphincter Glisson's Sphincter Somatotroph Cell Somatotroph Somatotrope Cell GH Cell An acidophil of the adenohypophysis that stains preferentially with orange G and secretes growth hormone. Somatotrope_Cell CA4 Field of the Cornu Ammonis CA4_Field_of_the_Cornu_Ammonis Visual_System Visual System Visual Pathway Rete_Testis Rete Testis Vaginal_Epithelium Vaginal Epithelium Gracilis Gracilis Renal_Pyramid A cone-shaped structure of the kidney. It is located in the medullary portion of the kidney (pyramid of Malpighi) or the cortical portion of the kidney (pyramid of Ferrein). Renal Pyramid Anterior_Olfactory_Nucleus Anterior Olfactory Nucleus Acromion Acromion A clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches. saliva Saliva Head and Neck, Saliva Saliva Stratum Germinativum Rete Malpighii Rete_Malpighii Immature Peripheral Alpha/Beta Cell of Cytotoxic Type A cell derived from stem cells in the bone marrow. It is a maturing T lymphocyte that expresses an alpha-beta antigen specific surface receptor (TCR) and the CD8 surface marker. These cells mature in the thymus. Immature_Peripheral_Alpha-Beta_Cell_of_Cytotoxic_Type Endometrial_Stroma Endometrial Stroma Lateral_Ligament Lateral Ligament of the Liver Lateral Ligament Superior Mesenteric Artery Superior_Mesenteric_Artery Olfactory_Bulb Olfactory Bulb Hilar Area of the Lung Hilar_Area_of_the_Lung Achilles_Tendon Calcanean Tendon Achilles Tendon Hemocytoblast Progenitor Cells, Hematopoietic Primitive blood cells derived from embryonic mesenchyme capable of differentiating into any of the blood cell line progenitor cells (erythroblasts, young granulocytic series cells, megakaryocytes, etc.) Hematopoietic_Stem_Cell Hematopoietic Progenitor Cells Stem Cells Hematopoietic Stem Cell Blood Precursor Cell Hematohistioblast Hematopoietic Stem Cells Hemohistioblast Ferrata cell Gastric Rugae Gastric_Rugae Pulmonary Vein Pulmonary_Vein Lateral Lenticulostriate Artery Lateral_Lenticulostriate_Artery Cingulate Cortex Cingulate_Cortex Abdominal_Cavity abdomen Abdominal Cavity Abdomen Endomysium Endomysium Limb Extremity Extremities A body region referring to an upper or lower extremity. Limb Hilar Area of the Right Lung Hilar_Area_of_the_Right_Lung Lung_Surfactant Pulmonary surfactant lines the lung epithelium and lowers surface tension to prevent collapse at end-expiration. Deficiency of pulmonary surfactant results in respiratory distress syndrome (RDS) in premature infants. Lung surfactant is synthesized in alveolar type II cells, stored in lamellar bodies and secreted via exocytosis. Surfactant, Lung Surfactant Lung Surfactant Superior Mediastinum Superior_Mediastinum An immature T-lymphocyte, that has enlarged following stimulation by an antigen, has the capacity to recognize the stimulating antigen and is undergoing proliferation and differentiation either to eliminate the antigen or to a memory state in order to recognize the future appearance of the antigen. T-Lymphoblast Precursor T-Lymphoblast T-Lymphoblast B-Lymphoblast Precursor B-Lymphoblast B-Lymphoblast A morphologically immature B-lymphocyte, once thought to represent an early stage in lymphocyte development but now known to be an activated lymphocyte that has been transformed in response to antigenic stimulation. Acetabulum Acetabulum Pulmonic Valve Pulmonary Valve Pulmonary_Valve Stem Cells, Myeloid Myeloid Progenitor Cells Myeloid Progenitor Cell Bone Marrow Myeloid Stem Cell One of the two stem cells derived from hematopoietic stem cells. (MeSH) Myeloid_Progenitor_Cell Gastric Secretion Gastric_Secretion Abducens_Nerve Sixth Cranial Nerve Nervus Abducens Cranial Nerve VI Abducens Nerve Auditory_Cortex Auditory Cortex Immature_T-Lymphocyte Immature T-Lymphocyte A cell developed in the thymus that differentiates into a mature T-lymphocyte. The maturation is dependent on several transcription factors including GATA-3 and c-Myb. The expression of the pre-T cell receptor alpha (pTa) gene occurs exclusively in the immature T lymphocyte. Endoneurium Endoneurium Lateral_Orbitofrontal_Artery Lateral Orbitofrontal Artery Pulmonary Body System respiratory tract Pulmonary Organ System Respiratory system (all sites) Body System, Pulmonary Organ System, Pulmonary respiratory system Respiratory_System Respiratory System Posterior Cricoarytenoid Ligament Posterior_Cricoarytenoid_Ligament Stomatognathic_System The mouth, teeth, jaws, pharynx, and related structures as they relate to mastication, deglutition, and speech. (MeSH) Stomatognathic System Pancreatic_Secretion pancreatic juices Pancreatic Secretion Pancreatic Juices Superior_Mesenteric_Vein Superior Mesenteric Vein Acinar_Salivary_Gland_System Acinar Salivary Gland System The glandular portion of the salivary system whose combined secretions constitute the saliva; a clear, alkaline, somewhat viscus secretion that keeps the mouth moist and aids in swallowing and digesting food. It includes the major salivary glands - sublingual, submandibular, and parotid glands, as well as numerous minor glands. Ovarian_Granulosa_Cell Ovarian Granulosa Cell A cuboidal cell derived from a spindle-shaped granulosa cell precursor. Initially, ovarian granulosa cells create a single layer surrounding an oocyte. The oocyte and its single layer of ovarian granulosa cells make up a primary follicle. Proliferation of the ovarian granulosa cells leads to multiple cell layers surrounding the oocyte and maturation into a secondary follicle. The granulosa cells extend cytoplasmic processes to form gestational gap-junction-like unions with the plasma membrane of the oocyte. The continued growth of the ovarian granulosa cells takes the oocyte to the Graafian follicle stage. Once ovulation occurs, the granulosa cells become part of the corpus luteum. A major function of an ovarian granulosa cell is hormone production and secretion. Posterior_Cruciate_Ligament Posterior Cruciate Ligament Gastric_Serosal_Surface Gastric Serosal Surface Plasmacytoid_Dendritic_Cell_Precursor A cell found in peripheral blood, lymphoid tissue, and some inflamed tissue. It produces vast amounts of type I interferons especially in response to viruses, therefore playing an important role in antiviral immunity and triggers for adaptive immune responses. Plasmacytoid Dendritic Cell Precursor Costal Arch Costal_Arch stem cells Stem Cells Stem Cell Progenitor Cells Mother Cells Relatively undifferentiated cells of the same lineage (family type) that retain the ability to divide throughout postnatal life to reproduce themselves and to give rise to other more specialized types of cells to take the place of those that die or are lost. (MeSH) Stem_Cell Tunica_Albuginea Tunica Albuginea Renal_Artery Renal Artery A young platelet that contains residual mRNA and rRNA when released from the bone marrow into the peripheral circulation as a result of thrombopoiesis. Immature platelets normally make up a small percentage of the total circulating platelets (1.1-6.1%, with a mean of 3.4%.). An increased proportion of immature platelets in blood indicates increased thrombopoiesis. The relationship between the percent of immature platelets and the platelet count can be used to determine the rate of platelet turnover. Immature Platelet Immature_Platelet Immature_Peripheral_Gamma-Delta_Cell_of_Cytotoxic_Type Immature Peripheral Gamma/Delta Cell of Cytotoxic Type A cell derived from stem cells in the bone marrow. It is a maturing T lymphocyte that expresses a gamma-delta antigen specific surface receptor (TCR). These cells exert major histocompatibility-unrestricted natural cytotoxicity against several types of solid tumors and some leukemias and lymphomas. They are also involved in the immune response to certain infections and are able to mediate antibody-dependent cytotoxicity and are not alloreactive. Posterior Communicating Artery Posterior_Communicating_Artery Foot_Bone The tarsus, metatarsus, and phalanges. (MeSH) Foot Bones Foot Bone Dorsalis_Pedis_Artery_Branch Dorsalis Pedis Artery Branch Superior Mesenteric Artery Branch Superior_Mesenteric_Artery_Branch A cell whose cytoplasm or its granules stain with acid dyes. Acidophilic_Cell Acidophilic Cell Gastric Submucosa Gastric_Submucosa Dorsalis_Pedis_Artery Dorsalis Pedis Artery Cortical_Bone Cortical Bone Radius_Bone Radius Bone Radius Radial Bone Bone Marrow Cells Bone Marrow Blood-Forming Cells Bone Marrow Blood-Forming Cell Cells contained in the bone marrow including fat cells, stromal cells, mega karyocytes, and the immediate precursors of most blood cells. (MeSH) Bone_Marrow_Blood-Forming_Cell Superior Internal Articular Artery Superior_Internal_Articular_Artery Xiphoid_Process Xiphoid Process Xiphisternum Thymic_Epithelial_Stem_Cell Thymic Epithelial Stem Cell An epithelial cell that exists in the early fetal thymus that has the capacity to give rise to both cortical and medullary thymic epithelium. Posterior_Commissure Posterior Commissure Herring Body Herring_Body aorta Aorta Aorta Hemispheric Cistern Hemispheric_Cistern Major_Salivary_Gland Major Salivary Gland Renal_Tissue Tissue composed of the renal cortex and the renal medulla. The basic functional unit of renal tissue is the nephron. Renal Tissue Peripheral Epidermotropic T-Lymphocyte Peripheral_Epidermotropic_T-Lymphocyte The largest mass of lymphatic tissue in the body. It consists of cells and vessels contained within a capsule lined by mesothelium, from which trabecula enter the splenic parenchyma. The parenchyma is supported by a framework of reticular fibers. The spleen consists of two types of parenchymal tissue, the white and red pulp. The white pulp is composed of elongated cords of compact lymphatic tissue containing nodules. The red pulp is composed of pulp cords and splenic sinusoids. Splenic Tissue Splenic_Tissue Gastric Tissue Gastric_Tissue Anterior Lobe of the Pituitary Gland Anterior Lobe of Pituitary Gland Pituitary Gland, Anterior Anterior_Lobe_of_the_Pituitary_Gland The glandular or anterior lobe of the pituitary gland which secretes several hormones. Anterior Lobe of Pituitary Pituitary Anterior Lobe Pars Anterior Pituitary Gland Adenohypophysis Glands, Anterior Pituitary Gland, Anterior Pituitary Anterior Pituitary Gland Endocrine Testis Endocrine_Testis Dorsal_Thalamus Dorsal Thalamus pituitary gland Hypophysis Cerebri Pituitary_Gland Hypophysis Pituitary Gland Pituitary Nervous System, Pituitary Endocrine Reproductive Tissue Endocrine_Reproductive_Tissue Tuber Cinereum Tuber_Cinereum Renal_Papilla Renal Papilla Wrist_Joint Wrist Joint Radiocarpal Joint Superior_Intercostal_Vein Superior Intercostal Vein Gastrocnemius Muscle Gastrocnemius_Muscle Posterior_Column Posterior Column Endolymph Endolymph High Endothelial Venule High_Endothelial_Venule Mature_Cytotoxic_T-Lymphocyte Mature Cytotoxic T-Lymphocyte A peripheral white blood cell that produces cytokines and kills infected target cells. It has a CD8 marker on its surface and has been activated by contact with MHC class I receptors and cytokines. Hemisphere of the Cerebellum Hemisphere_of_the_Cerebellum Vertebral_Column Vertebral Column Spine Spinal Column The series of vertebrae forming the axis of the skeleton and protecting the spinal cord. Tunica_Adventitia The outer connective tissue layer of the blood vessel wall. The adventitia consists of longitudinally arranged collagen fibers, elastic fibers, smooth muscle, fibroblasts, nerves and the vasa vasorum. It is thicker in veins than in arteries. Tunica Adventitia Peyer_s_Patch Peyer's Patches Peyer's Patch Lymphoid tissue on the mucosa of the small intestine. (MeSH) Gastric Vein Gastric_Vein Endocrine-Stromal_Cell Endocrine-Stromal Cell A cell that forms the supporting matrix of one of the glands that secretes substances into the blood or lymph. Cuneate_Nucleus Cuneate Nucleus Right Lung Respiratory Bronchiole Right_Lung_Respiratory_Bronchiole Zygomatic_Arch Zygomatic Bone Zygomatic Arch Zygoma Superior_Maxillary_Nerve Superior Maxillary Nerve Hepatic Artery Hepatic_Artery Proerythroblast Proerythroblast The earliest of four stages in development of the normoblast. Posterior Circumflex Artery Posterior_Circumflex_Artery Small_Intestinal_Muscularis_Mucosa Two-layered muscularis mucosa extending into the small intestinal villi, where the smooth muscle cells form a longitudinal bundle in the centre of the villi. It is located between the lamina propria and submucosa of the small intestine. Small Intestinal Muscularis Mucosa Gastrocolic Ligament Gastrocolic_Ligament Endometrial Cavity Endometrial_Cavity Adrenal_Gland Adrenals Adrenal glands Adrenal Glands Adrenal Gland Suprarenal gland. A flattened, roughly triangular body resting upon the upper end of each kidney; it is one of the ductless glands furnishing internal secretions (epinephrine and norepinephrine from the medulla and steroid hormones from the cortex). SYN glandula suprarenalis, adrenal body, adrenal capsule, adrenal gland, atrabiliary capsule, epinephros, glandula atrabiliaris, paranephros, suprarenal body, suprarenal capsule. Accessory_Nerve Eleventh Cranial Nerve Accessory Nerve Pulmonary Trunk Pulmonary Artery Pulmonary_Artery True Vocal Cord True_Vocal_Cord Zygomatic_Fossa Zygomatic Fossa Foot Digit Skin Foot_Digit_Skin Superior Maxillary Bone Superior_Maxillary_Bone Zona_Pellucida Zona Pellucida Marginal_Zone_B-Lymphocyte_of_Nodal_Type Marginal Zone B-Lymphocyte of Nodal Type A lymphocyte found in the marginal zones of lymph nodes. It has a naive B lymphoid lineage and plays an important role in the early phases of immune response with its ability to rapidly differentiate into an antibody secreting cell. These cells can directly activate T cells, interact with other antigen presenting cells, transporting and concentrating antigen during the course of T-dependent and T-independent immune responses. Posterior Circulation Intracranial Artery Posterior_Circulation_Intracranial_Artery Hemorrhoidal_Plexus Hemorrhoidal Plexus The part of the eye anterior to the lens, including but not limited to the anterior chamber, cornea and related structures. Anterior Eye Segment Anterior_Eye_Segment Endometrial_Cell An epithelial cell lining the endometrial cavity, located in the uterus. These cells proliferate and respond to the cyclic variations of estrogen and progesterone. They synthesize or transport and secrete substances essential for survival and development of the embryo/fetus and associated extraembryonic membranes. Endometrial Glandular Cell Gastroesophageal Junction Gastroesophageal_Junction The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (Cline et al., Dictionary of Visual Science, 4th ed, p109) Anterior Chamber Anterior Chamber (Eye) Chamber, Anterior Anterior_Chamber_of_the_Eye Anterior Chamber of Eye Anterior Chamber of the Eye Posterior Lobe of Pituitary Gland Posterior Lobe of Pituitary The neural or post-neural lobe of the pituitary gland which stores and releases vasopressin, oxytocin, and neurophysins. Neurohypophysis Posterior_Lobe_of_the_Pituitary_Gland Posterior Pituitary Gland Posterior Lobe of the Pituitary Gland Abdominal_Muscle Abdominal Muscle Trunk Trunk Eyelid Skin Eyelid_Skin Palmar_Region Palmar Region Incisor Incisor Permanent Tooth Permanent_Tooth Lactiferous_Duct A channel conveying the milk secreted by the lobes of the breast to and through the nipple. Lactiferous Duct Iliac Vein Iliac_Vein Lymph_Node_Cortex The portion of the lymph node that contains nodules with germinal centers where B lymphocyte mature into plasma cells after activation. The nodules are separated by diffuse lymphatic tissue, lymph sinuses and trabeculae. Lymph Node Cortex Urethralis Urethralis Central_Vein Central Vein Intercalated_Duct_of_the_Pancreas Intercalated Duct of the Pancreas Lymph Node Capsule Lymph_Node_Capsule Unspecified_Anatomic_Sites Unspecified Site Unspecified Anatomic Sites Research that isn't focused on a specific site. Spinal_Cord_Arachnoid_Membrane Spinal Cord Arachnoid Membrane Iliac_Artery Iliac Artery Interstitial Segment of the Fallopian Tube Interstitial_Segment_of_the_Fallopian_Tube Arachnoid Membrane A delicate fibrous membrane interposed between the dura mater and the pia mater of the brain and spinal cord. It is separated from the pia mater by the subarachnoid space. Arachnoid_Membrane Intestinal_Wall_Tissue Intestinal Wall Tissue Foot_Digit_2_Phalanx Foot Digit 2 Phalanx Peroneal Artery Peroneal_Artery Soleus Soleus immunologic/allergic organ system immune system body system, allergic/immunologic The complex group of organs like thymus, spleen, tonsils, lymphatic system, hematopoetic system and cells like lymphocytes, granulocytes, monocytes and macrophages that defends the body against infection or disease. It consists of a complex interrelated cellular, molecular and genetic component. Immune System Immune_System allergic/immunologic organ system organ system, allergic/immunologic allergic/immunologic body system Crus Cerebri Crus_Cerebri Prolactin Cell PRL Cell Mammotrope Lactotroph Cell Lactotroph Lactotrope Cell Lactotrope_Cell Central_Sulcus_of_Rolando Central Sulcus of Rolando Lumbosacral_Plexus Lumbosacral Plexus Appendicular Skeleton The part of the skeleton that includes the bones of the upper and lower limbs. Appendicular_Skeleton Spinal Cord Dura Mater Spinal_Cord_Dura_Mater Interstitial Cell of the Pineal Gland A non-neuronal cell that supports the pineal gland. It resembles an astrocyte and is found around blood vessels and among groups of pinealocytes. The nucleus is small, elongated and darkly stained. Interstitial_Cell_of_the_Pineal_Gland Aqueduct_of_Sylvius Aqueduct of Sylvius Foot Digit 1 Phalanx Foot_Digit_1_Phalanx Pancreatic Acinus Pancreatic_Acinus Immature_Bone The earliest tissue to appear in embryonic development (it is the predominant bone in the developing fetus) and post fracture. The collagenous lamellae are randomly oriented and loosely intertwined. It is characterized by coarse fiber bundles approximately 30 um in diameter. Woven Bone Nonlamellar Bone Immature Bone Bundle Bone Area_of_Broca Area of Broca Crural_Cistern Crural Cistern Effector_Cell effector cell Effector Cell Mesangium A thin membrane in the central part of the renal glomerulus between capillaries. It helps to support the capillary loops in the glomerulus. Mesangial cells are phagocytic and for the most part separated from capillary lumina by endothelial cells. Mesangium Pancreatic_Centroacinar_Cell Pancreatic Centroacinar Cell A cell with a centrally placed nucleus found in the proximal portion of pancreatic intercalated duct that protrudes into the acinus. It secretes bicarbonate made in the cell by the dissociation of carbonic acid in the presence of carbonic anhydrase II. These cells are thought to act as signal transducers, influencing the degranulation of the acinar cells. Autologous_Lymphocyte autologous lymphocytes Autologous Lymphocytes Autologous Lymphocyte Tensor Fasciae Lata Tensor_Fasciae_Lata Superior Oblique Muscle Superior_Oblique_Muscle Superior_Occipital_Convolution Superior Occipital Convolution Lymph Node Afferent Vessel Lymph_Node_Afferent_Vessel Tunica_Vaginalis Tunica Vaginalis Penis_Erectile_Tissue Penis Erectile Tissue Interstitial_Cell_of_Cajal Interstitial Cell of Cajal A specialized cell found throughout the gastrointestinal tract. These cells are essential for normal gastrointestinal motility by functioning as the pacemaker cells in gastrointestinal muscles. They mediate or transduce inputs from enteric motor nerves to the smooth muscle syncytium. Hand_Digit_1_Phalanx Hand Digit 1 Phalanx Humerus Humerus A B-lymphocyte derived from a Pre B lymphocyte. It develops in bone marrow then exit via the central sinus. It goes through the vascular system to the spleen. It does not proliferate and differentiate in response to antigen, but instead responds to antigen by negative selection resulting in subsequent immune system tolerance to that antigen. Immature B-Lymphocyte Immature_B-Lymphocyte Mesencephalic_Perforating_Artery Mesencephalic Perforating Artery Arch_of_the_Vertebra Arch of the Vertebra Retired_Anatomy_Concepts Retired Anatomy Concepts Deleted Anatomy Concepts Pancreatic_Endocrine_Secretion Pancreatic Endocrine Secretion Endocrine Pancreas Secretion Peripheral Blood Lymphocyte PBL Peripheral_Blood_Lymphocyte Tunica_Intima The inner most layer of the blood vessel wall. The consistency of the intima will vary depending on the type of blood vessel, but will always have an endothelial layer with a basal lamina. It may contain collagen and elastic fibers. Tunica Intima Vastus Lateralis Vastus_Lateralis Ulnar Nerve Ulnar_Nerve Lymph Node by Anatomic Site Lymph_Node_by_Anatomic_Site Tunica_Media Tunica Media The middle layer of the blood vessel wall. It consists of concentrically arranged smooth muscle and may include elastic tissue. Its thickness will depend on the type of vessel, thicker in arteries than in veins. Central_Zone_of_the_Prostatic_Parenchyma Central Zone of the Prostatic Parenchyma Part of the functional area of the prostate that is above and in front of the transitional zone. The central zone comprises about 20-25% of the gland and is the location of about 10% of the prostate cancers found in the gland. Phalanx Phalanx Interstitial_Cell Interstitial Cell An interstitial cell is a cell that is part of the connective and soft tissues. Constrictor_Vulvae Constrictor Vulvae Hand_Digit_2_Phalanx Hand Digit 2 Phalanx Choroid_Plexus_Epithelium Choroid Plexus Epithelium Arachnoid_Villus Glandulae Pacchioni Arachnoid Villus Hypoglossal_Nerve Twelfth Cranial Nerve Hypoglossal Nerve Convoluted Tubule Convoluted_Tubule Inner Plexiform Layer Inner_Plexiform_Layer Sternothyroid Sternothyroid The epithelium that lines the lactiferous ducts and the secretory alveoli. The mammary epithelium in the lactiferous duct is a two layered epithelium. The basal cells are cuboidal and the superficial cells are columnar. Branches of the lactiferous duct are lined with a simple cuboidal epithelium. The secretory alveoli are lined by a cuboidal or columnar epithelium. During the first half of pregnancy, the epithelium undergoes considerable growth leading to the formation of new terminal branches of ducts and of alveoli. The mammary glands continue to grow during the second half of pregnancy due to increases in the height of epithelial cells and an expansion of the lumen of the alveoli. Mammary Epithelium Mammary_Epithelium Arteriole_Smooth_Muscle_Tissue Arteriole Smooth Muscle Tissue Jugular_Vein Jugular Vein Nucleus_of_the_Mesencephalic_Tract_of_the_Trigeminal_Nerve Nucleus of the Mesencephalic Tract of the Trigeminal Nerve Crossed Pyramidal Tract Crossed_Pyramidal_Tract Mesentery Mesentery Elastic Cartilage Elastic_Cartilage Pharyngeal Tonsil Adenoid Pharyngeal_Tonsil Apocrine_Sweat_Gland Apocrine Sweat Gland A dark cell found in taste buds. It is rich in free ribosomes, tubular RER and has large dense granules and exhibits AbH immunoreactivity. Type I Epithelial Receptor Cell Type I Cell Type_I_Epithelial_Receptor_Cell Upper_Jaw_Incisor Upper Jaw Incisor Nasopharynx_Epithelium Nasopharynx Epithelium Styloglossus Styloglossus Lamina Cinerea Lamina_Cinerea Arteriole_Endothelium Arteriole Endothelium Renal Cortex Cortical Portion of the Kidney Cortical Portion of Kidney Renal_Cortex Cricotracheal_Ligament Cricotracheal Ligament Gut_Associated_Lymphoid_Tissue Gut-Associated Lymphoid Tissue Gut Associated Lymphoid Tissue GALT Non-encapsulated accumulations of lymphoid tissue in the alimentary tract that form a secretory immune system containing cells committed to IgA or IgE synthesis; It includes Peyer's patches and the lymphoid tissue which is present throughout the gastrointestinal mucosa. (partially adapted from CSP98) Mesothelial Cell A flat cell of mesenchymal origin that forms the superficial layer of the serosal membranes lining the body cavities of the abdomen and thorax. Mesothelial_Cell Elastic_Fiber Elastic Fiber Photosensitive_Region_of_the_Retina Photosensitive Region of the Retina Centromedian_Nucleus_of_the_Thalamus Centromedian Nucleus of the Thalamus Apical_Domain_of_the_Epithelium Free Surface of the Epithelium Free Surface of Epithelium Apical Domain of the Epithelium Apical Domain of Epithelium Tibial_Nerve Tibial Nerve Oropharynx_Epithelium Oropharynx Epithelium Tunica_Vasculosa Tunica Vasculosa Ectocervix Exocervix Ectocervix Aqueous Humor Aqueous_Humor Upper_Jaw_Molar Upper Jaw Molar Palatine Tonsil Palatine_Tonsil Inner_Limiting_Membrane A retinal layer composed of the basal lamina of Muller's cells. Inner Limiting Membrane Basement_Membrane Basement Membrane Ubiquitous supportive tissue adjacent to epithelium and around smooth and striated muscle cells. This tissue contains intrinsic macromolecular components such as collagen, laminin, and sulfated proteoglycans. As seen by light microscopy one of its subdivisions is the basal (basement) lamina. Intestine Intestines bowel intestine The portion of the gastrointestinal tract between the stomach and the anus. It includes the small intestine and large intestine. Bowel Intestine Mesothelium A simple layer of cells, derived from the mesoderm that lines the coelom or body cavity of the embryo. In the adult, it covers all true serous membranes (peritoneum, pericardium, pleura). Mesothelium Aorta_Smooth_Muscle_Tissue Aorta Smooth Muscle Tissue Lamella of Harvesian System Lamella_of_Harvesian_System Cricothyroid Muscle Cricothyroid_Muscle Cerebral_Aqueduct Cerebral Aqueduct Elastin Fiber Elastin_Fiber Metacarpophalangeal Joint Metacarpophalangeal_Joint Upper_Jaw_Tooth Upper Jaw Tooth Ulnar_Artery_Branch Ulnar Artery Branch Lung One of a pair of viscera occupying the pulmonary cavities of the thorax, the organs of respiration in which aeration of the blood takes place. As a rule, the right lung is slightly larger than the left and is divided into three lobes (an upper, a middle, and a lower or basal), while the left has two lobes (an upper and a lower or basal). Each lung is irregularly conical in shape, presenting a blunt upper extremity (the apex), a concave base following the curve of the diaphragm, an outer convex surface (costal surface), an inner or mediastinal surface (mediastinal surface), a thin and sharp anterior border, and a thick and rounded posterior border. Respiratory System, Lung Lungs Lung Ovarian_Capsule Ovarian Capsule Palmar Fascia Palmar_Fascia Inner_Nuclear_Layer Inner Nuclear Layer Bile bile Bile Juice Bile Dorsal_Motor_Nucleus Dorsal Motor Nucleus of the Vagus Dorsal Motor Nucleus DMN Iris Iris Lamellar_Body Lamellar Body Aorta_Endothelium Aorta Endothelium Cricothyroid_Ligament Cricothyroid Ligament Aponeurosis Aponeurosis Cephalic_Vein Cephalic Vein Elbow Joint Elbow_Joint Metatarsal Artery Metatarsal_Artery Type_II_Epithelial_Receptor_Cell Type II Epithelial Receptor Cell Type II Cell A light cell found in taste buds that has large amorphous areas of cytoplasmic matrix, scarce ribosomes and RER. Most are alpha-gustducin immunoreactive, some may be AbH immunoreactive and/or PGP 9.5 immunoreactive. Pleural_Tissue The tissue that lines the wall of the thoracic cavity and the surface of the lungs. pleura Pleural Tissue Pleura Intercalated_Duct_of_the_Salivary_Gland_System Intercalated Duct of the Salivary Gland System Ductal_Epithelium Ductal Epithelium Duct Epithelium Upper Third of the Esophagus Upper Third of Esophagus Upper_Third_of_the_Esophagus Afferent_Pathway Nerve structures through which impulses are conducted from a peripheral part toward a nerve center. (MeSH) Afferent Pathways Afferent Pathway Endometrium endometrium Endometrium The endometrium, or tunica mucosa, is the mucous membrane comprising the inner layer of the uterine wall; it consists of a simple columnar epithelium and a lamina propria that contains simple tubular uterine glands. The structure, thickness, and state of the endometrium undergo marked change with the menstrual cycle. Serosal_Surface_of_the_Liver The membrane lining the external surface of the liver. Serosal Surface of the Liver Eccrine_Sweat_Gland Eccrine Sweat Gland Nervous Nerve Part of the peripheral nervous system composed of bundles of nerve fibers running to various organs and tissues of the body using chemical and electrical signals to transmit sensory and motor information from one body part to another. Nerve Cerebral Fornix Cerebral_Fornix Cricopharyngeus_Muscle Inferior Constrictor Muscle of the Pharynx Inferior Constrictor Muscle of Pharynx Cricopharyngeus Muscle Lung Left Lower Lobe Lower Lobe of the Left Lung-LLL Lower Lobe of the Left Lung Lower Lobe of Left Lung-LLL Lower_Lobe_of_the_Left_Lung Ileo-Colic Artery Ileo-colic_Artery Superior Sagittal Sinus Sagittal Sinus, Superior Sagittal Sinus, Greater Greater Sagittal Sinus An intracranial venous sinus that lies in a superior and midline location above the interhemispheric fissure along the superior border of the falx cerebri of the brain. The sinus receives blood from the cerebral veins and drains posteriorly into the lateral sinuses of the brain, which in turn drain into the internal jugular veins. Superior_Sagittal_Sinus Inner Hair Cell of the Organ of the Corti Inner Hair Cell of Organ of Corti A cell situated on the inner most layer of the basilar membrane of the cochlea. Each cell has multiple, sensitive strands called stereocilia. In the resting state the stereocilia are leaning on each other in a conical bundle and touch the tectorial membrane. When the cochlea moves in response to sound, a slight shearing force occurs between the basilar and tectorial membranes, the stereocilia bend and send electrical impulses to the brain via the eighth cranial nerve. Inner_Hair_Cell_of_the_Organ_of_the_Corti Cricothyroid_Joint Cricothyroid Joint Vertebra Vertebrae Vertebra Pituitary_Stalk Pituitary Stalk Coracobrachialis Coracobrachial Muscle Coracobrachial Coracobrachialis Extracellular_Structure Any structures that are not enclosed intracellularly are considered extracellular structure, including structures on the cell surface. (NCI) Extracellular Structure The connective tissue coat of a mucous membrane including the epithelium and basement membrane. Lamina Propria Lamina_Propria Extensor_Digitorum_Longus Extensor Digitorum Longus Upper_Lobe_of_the_Left_Lung Upper Lobe of the Left Lung-LUL Upper Lobe of the Left Lung Upper Lobe of Left Lung-LUL Lung Left Upper Lobe Serous_Salivary_Gland Serous Salivary Gland myometrium Myometrium Myometrium Sympathetic Ganglion Ganglia of the sympathetic nervous system including the paravertebral and the prevertebral ganglia. Among these are the sympathetic chain ganglia, the superior, middle, and inferior cervical ganglia, and the aorticorenal, celiac, and stellate ganglia. (MeSH) Sympathetic_Ganglion Exocervical Os Ectocervical Os Ectocervical_Os Cerebral_Fissure Cerebral Fissure Abdominal_Esophagus Abdominal Esophagus Cricoid_Cartilage Cricoid Cartilage Sagittal_Sinus Sagittal Sinus Inferior_Sagittal_Sinus Sagittal Sinus, Lesser Sagittal Sinus, Inferior Lesser Sagittal Sinus Inferior Sagittal Sinus An intracranial venous sinus that lies in a midline location along the lower free border of the falx cerebri of the brain. The sinus receives blood from the great cerebral vein and joins the superior sagittal sinus posteriorly. Xenograft xenograft Xenograft A graft transferred from an animal of one species to one of another species. Efferent Pathways Efferent Pathway Nerve structures through which impulses are conducted from a nerve center toward a peripheral site. (MeSH) Efferent_Pathway Tuberculum_Sellae Tuberculum Sellae Thalamostriate_Vein Thalamostriate Vein Depressor_Labii_Inferioris Depressor Labii Inferioris Multiple_Cancer_Sites Multiple Cancer Sites More than one cancer site. Lamina Rara Externa Lamina_Rara_Externa Septum Pellucidum Septum_Pellucidum Efferent_Ductule Efferent Ductule Spinal Cord Medulla Spinalis The elongated, approximately cylindrical part of the central nervous system of vertebrates that lies in the vertebral canal and from which the spinal nerves emerge. (On-line Medical Dictionary) Spinal_Cord Uterus, cervix Cervix Cervix Uterine Cervix Genital System, Female, Cervix Cervix Uteri cervix The lower part of the uterus occupying the region between the isthmus of the uterus and the vagina. It is divided into supravaginal and vaginal portions. Artery_Smooth_Muscle_Tissue Artery Smooth Muscle Tissue Apex_of_the_Tongue Tip of the Tongue Tip of Tongue Apex of the Tongue Apex of Tongue Thoracic_Esophagus Thoracic Esophagus Intrapulmonary_Bronchus Intrapulmonary Bronchus Head_and_Neck_Fluids_and_Secretions Head and Neck-Fluids, Secretions Head and Neck, Fluids, Secretions Head and Neck Fluids and Secretions Secretions and fluids from the area of the body generally construed to comprise base of skull and facial bones, sinuses, orbits, salivary glands, oral cavity, oropharynx, larynx, thyroid, facial and neck musculature and lymph nodes draining these areas. Lamina_Densa Lamina Densa Internal Capsule White matter pathway, flanked by nuclear masses, consisting of both afferent and efferent fibers projecting between the cerebral cortex and the brainstem. It consists of three distinct parts: the anterior limb, posterior limb, and genu. (MeSH) Internal_Capsule Seromucous Salivary Gland Seromucous_Salivary_Gland Isthmus Uteri Isthmus_Uteri Peripheral_Nervous_System The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system. (from Wikipedia) Peripheral Nervous System Artery Endothelium Artery_Endothelium Cervical_Esophagus Cervical Esophagus Ejaculatory Duct Ejaculatory_Duct Used when the correct precoordinated combinations of areas is not listed. Other_Multiple_Areas Other Multiple Areas Collateral_Fissure Collateral Fissure Buccinator Buccinator Intraparietal Sulcus Intraparietal_Sulcus The inner most layer of the enamel organ. It is derived from the ectoderm of the dental lamina and differentiates into ameloblasts that secrete the enamel of the root crown. Inner Enamel Epithelium Inner_Enamel_Epithelium Lamina Lucida Lamina_Lucida A complex group of fibers arising from the basal olfactory regions, the periamygdaloid region, and the septal nuclei, and passing to the lateral hypothalamus. (MeSH) Medial Forebrain Bundle Medial_Forebrain_Bundle Perineural_Cell A cell surrounding a neuron. Perineural Cell External_Capsule External Capsule Collateral_Gyrus Collateral Gyrus Iliopsoas_Muscle Iliopsoas Muscle Arterial_System_Endothelium Arterial System Endothelium Dorsal Root Ganglion Sensory ganglia located on the dorsal spinal roots within the vertebral column. (MeSH) Dorsal_Root_Ganglion Lung Tissue Lung Parenchyma Tissue consisting of an external serous coat, subserous areolar tissue and lung parenchyma. The parenchyma is made up of lobules wound together by connective tissue. A primary lobule consists of a terminal bronchiole, respiratory bronchioles, and alveolar ducts, which communicate with many alveoli, each alveolus being surrounded by a network of capillary blood vessels. Lung_Tissue Dartoic_Muscle Dartoic Muscle A broad fold of peritoneum that extends from the side of the uterus to the wall of the pelvis. (MeSH) Lateral Ligament Broad Ligament Broad_Ligament Sensory-Somatic_Nervous_System Sensory-Somatic Nervous System Calcium_Channel Calcium Channel Flexor_Carpi_Radialis Flexor Carpi Radialis Epinephrine and norepinephrine from the medulla and steroid hormones from the cortex. Adrenal-Fluids, Secretions Adrenal Fluids and Secretions Adrenal Fluid or Secretion Adrenal_Fluid_or_Secretion Smooth_Muscle_Tissue_Cell Smooth Muscle Tissue Cell Smooth Muscle Cell Leiomyocyte An elongated spindle-shaped contractile cell, peculiar to an involuntary muscle, containing a single nucleus and longitudinally arranged myofibrils. Ilium Ilium Tibialis Caudalis Tibialis_Caudalis Intralaminar_Nucleus Intralaminar Nucleus Peripheral_Blood_Cell A general term describing the three cellular components of blood (white blood cells, red blood cells, and platelets), all which are made in the bone marrow. (Lymphoma Information Network Glossary) Peripheral Blood Cell Blood Cells Blood Cell Pancreatic Exocrine Secretion Exocrine Pancreas Secretion Pancreatic_Exocrine_Secretion Inguinal Lymph Node Inguinal_Lymph_Node Iliocostalis Thoracis Iliocostal Muscle Iliocostal_Muscle Collateral_Sulcus Collateral Sulcus An endocrine cell that produces and releases hormones and regulatory proteins such as neurotransmitters and neuropeptide hormones. This type of cell enables autocrine communication with paracrine and endocrine cells throughout the body. Neuroendocrine Cells Neuroendocrine Cell Neuroendocrine_Cell Retina_Layer Retina Layer A tooth with functioning pulpal tissue. Vital Tooth Vital_Tooth Extensor_Carpi_Ulnaris Extensor Carpi Ulnaris Lunula Lunula Septal Vein Septal_Vein Alveolar_Septum Interalveolar Septum Alveolar Septum Alveolar Septal Wall Septal Cusp of the Tricuspid Valve Septal Cusp Septal_Cusp Round Ligament A fibromuscular band that attaches to the uterus and then passes along the broad ligament, out through the inguinal ring, and into the labium majus. (MeSH) Round_Ligament Flexor_Carpi_Ulnaris Flexor Carpi Ulnaris Rhabdomyocyte Large single cells, either cylindrical or prismatic in shape, that form the basic unit of muscle tissue. They consist of a soft contractile substance enclosed in a tubular sheath. (MeSH) Skeletal Muscle Cell Rhabdomyocyte Muscle Fibers Tibialis_Cranialis Tibialis Cranialis Intracranial Venous System Intracranial_Venous_System A simple cuboidal epithelial cell lining the collecting duct of the kidney. Its function is dependent upon its location on the collecting duct. Collecting_Cell Collecting Cell Tectum Mesencephali Tectum_Mesencephali Plasma_Cell plasma cells Plasmocyte Plasmacytes Plasma Cells Plasma Cell Blood Plasma Cell Iliacus Iliacus Fundus_Uteri Fundus Uteri Extensor_Digitorum_Lateralis Extensor Digitorum Lateralis Lower_Lobe_of_the_Right_Lung Lung Right Lower Lobe Lower Lobe of the Right Lung -RLL Lower Lobe of the Right Lung Lower Lobe of Right Lung -RLL Corpus Uteri Corpus_Uteri Uterine Body The Corpus uteri, or body of uterus, is the part of the uterus above the isthmus, comprising about two thirds of the non-pregnant organ. Uterus, corpus Corpus corpus Sensory Hair Sensory_Hair Papilla of the Tongue Papilla_of_the_Tongue Auditory_System Auditory System The organs involved with detecting and processing auditory information, including the pinna, external auditory canal, ear drum, middle ear, and inner ear (including the cochlear organ). Intracellular_Membrane Ependymocyte Ependymocyte Ependymal Cells Ependymal Cell A cell that lines cavities in the central nervous system. It is considered to be a type of glial cell. Tibialis Tibialis Muscle Tibialis Collecting_Tube Straight Tube Collecting Tube Corpora_Quadrigemina Corpora Quadrigemina Tooth_30 The first, permanent six-year molar of the lower right arch as defined by the Universal tooth numbering system. Tooth 30 Tooth #30 Iliac Lymph Node Iliac_Lymph_Node Interventricular Septum Interventricular_Septum Extensor Digitorum Communis Extensor_Digitorum_Communis Upper_Lobe_of_the_Right_Lung Upper Lobe of the Right Lung -RUL Upper Lobe of the Right Lung Upper Lobe of Right Lung -RUL Lung Right Upper Lobe Gluteus Maximus Gluteus_Maximus Sensory Receptor of the Ear Sensory_Receptor_of_the_Ear Intestinal_Secretion Intestinal Secretion Infundibular_Segment_of_the_Fallopian_Tube Infundibular Segment of the Fallopian Tube Papillary Muscle Papillary_Muscle Cardiocyte A muscle cell in heart tissue (myocardium). Heart Muscle Cell Cardiomyocyte Cardiocyte Endocardium Endocardium The innermost layer of the heart, comprised of endothelial cells. (MeSH) Right_Inguinal_Region Right Inguinal Region Right Iliac Region inferior vena cava Inferior Vena Cava Inferior_Vena_Cava A cell of the neural lobe of the hypophysis. It has long branching processes and resembles neuroglia. It secretes antidiuretic hormone. Pituicyte Pituicyte Aciner Cells Acinar Cell Acinar_Cell Aortic Valve Aortic_Valve Endothelium The layer of cells that lines the cavities of the heart and of the blood vessels (Endothelium, Vascular) and lymph vessels (Endothelium, Lymphatic), and the serous cavities of the body, originating from the mesoderm. Endothelium Terminal_Ileum Terminal Ileum Brachialis Brachialis Left_Ureter Left Ureter Esophageal Opening Esophageal_Opening Coccygeal_Vertebra Coccygeal Vertebra Hypoglossal_Nucleus Nucleus of the Hypoglossal Nerve Hypoglossal Nucleus Pericardium Pericardium The fibroserous sac surrounding the heart and the roots of the great vessels. (MeSH) Right_Inferior_Frontal_Convolution Right Inferior Frontal Convolution Superior_Vena_Cava superior vena cava Superior Vena Cava Germinal_Center Germinal Center Biceps_Femoris Biceps Femoris Sesamoid Bone Sesamoid_Bone Bone_Tissue Bone Tissue Dopaminergic_Cell Nerve cells that employ dopamine as their neurotransmitter. Dopaminergic Cell Terminal_Ductal_Lobular_Unit Terminal Ductal Lobular Units Terminal Ductal Lobular Unit TDLU An epithelial cell found in the small lobes at the end of the milk ducts inside the breast where the milk-producing cells are. Terminal Ductal Lobular Unit Cell Terminal_Ductal_Lobular_Unit_Cell Esophageal Squamous Cell A flat, scale-like epithelial cell that lines the upper and middle third of the esophageal lumen. Esophageal_Squamous_Cell Right_Adrenal_Gland Right Adrenal Gland Coccygeal_Nerve Coccygeal Nerve Posterior_Tooth Posterior Tooth Refers to teeth and tissues towards the back of the mouth (distal to the canines): maxillary and mandibular premolars and molars. The designation of permanent posterior teeth in the Universal tooth numbering system include teeth 1 through 5 and 12 through 16 (maxillary), and 17 through 21 and 28 through 32 (mandibular); primary teeth in the Universal tooth numbering system are designated A, B, I, and J (maxillary) and K, L, S, and T (mandibular). Flexor Digitorum Profundus Flexor_Digitorum_Profundus Facial_Nerve_Nucleus Facial Nucleus Facial Nerve Nucleus Upper Limb Upper Extremity Forelimb Upper_Extremity Cochlear_Nucleus Cochlear Nucleus Neuroepithelial_Cell Neuroepithelial Cell A cell found in the nervous system. It includes glial cells, neuroblasts, and olfactory cells. Neural_Pathway Neural Pathways Neural Pathway Neural tracts connecting one part of the nervous system with another. (MeSH) vas deferens Vas Deferens Duct carrying spermatozoa. Vas_Deferens Specialized_Epithelial_Cell A cell that covers the surface of the body and lines its cavities that has a specific function to perform. Specialized Epithelial Cells Specialized Epithelial Cell Epithelial Cells, Specialized Head and Neck Part Head_and_Neck_Part Terminal Bronchiole Terminal_Bronchiole Endocervix Endocervix Serratus_Magnus Serratus Magnus Popliteal_Lymph_Node Popliteal Lymph Node Ambient_Cistern Ambient Cistern Epithelium consisting of a single layer of cuboidal epithelial cells without goblet cells. Terminal Bronchiole Epithelium Terminal_Bronchiole_Epithelium Body of Stomach Body_of_Stomach Arteriole Arteriole Oculomotor_Nucleus Oculomotor Nucleus Right Testis Right_Testis Ependyma A thin membrane that lines the ventricles of the brain and the central canal of the spinal cord. Ependymal Tissue Ependyma Cochlear Labyrinth Cochlear_Labyrinth Vein Vein Clitoris Clitoris Terminal Bar Terminal_Bar Vertebral_Vein Vertebral Vein Alveus Alveus Gastric Antrum Antrum Pylori Antrum_Pylori Flexor_Hallucis_Longus Flexor Hallucis Longus fibroblast Fibroblasts Fibroblast Fibroblast Sacral_Spinal_Cord Sacral Spinal Cord Autonomic_Nervous_System The part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands. Autonomic Nervous System Esophageal_Muscularis_Mucosa Esophageal Muscularis Mucosa Right_Ureter Right Ureter PLT - Platelet Thrombocyte/Platelet Thrombocyte Marrow platelet Hayem's elementary corpuscle Reticuloendothelial System, Platelets Deetjeen's body thrombocytes An irregular, disc-shaped element in the blood that assists in blood clotting. Platelets are not blood cells, they are fragments of large bone marrow cells called megakaryocytes. Platelets Blood Platelets Platelet Platelet platelets Blood Platelet Bizzozero's corpuscle/cell Thrombocytes Cochlear_Duct Cochlear Duct Teres Muscle Teres_Muscle Vertebral_Artery Vertebral Artery VA Facial_Muscle Facial Muscles Facial Muscle Muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. (MeSH) Gastric Pit Gastric Foveola Gastric_Pit Right Fallopian Tube Right_Fallopian_Tube Superior_Parathyroid_Gland Superior Parathyroid Gland Exocrine Pancreas Exocrine_Pancreas Collagen Fibril Collagen_Fibril Cell specialized for oxygen transport, having a high concentration of hemoglobin in the cytoplasm and little else; biconcave, anucleate discs, 7nm diameter in mammals. Red cell of marrow RBC - Red blood cell erythrocytes Erythrocyte Reticuloendothelial System, Erythrocytes Red Blood Cells Blood normocyte Erythrocytes red blood cell Red Cell Erythrocytic Red cells blood corpuscles Erythrocyte Red blood corpuscule RBC Blood erythrocyte Spinal_Nerve_Plexus Spinal Nerve Plexus Lumbar_Spinal_Cord Lumbar Spinal Cord Lumbar Portion of Spinal Cord Venous_System_Endothelium Venous System Endothelium Cardia Gastric Cardia Cardia, NOS Gastric Cardia Cardia Teres_Minor_Muscle Teres Minor Muscle Dentition Dentition The teeth collectively in the dental arch. Dentition ordinarily refers to the natural teeth in position in their alveoli. (MeSH) Right_Common_Iliac_Artery Right Common Iliac Artery Collagen_Fiber Collagen Fiber Superior_Palpebral_Fold Superior Palpebral Fold External Abdominal Ring External_Abdominal_Ring Thoracic Spinal Cord Thoracic Portion of Spinal Cord Thoracic_Spinal_Cord Fundus_of_the_Stomach Fundus of the Stomach Fundus of Stomach The superior portion of the body of the stomach above the level of the cardiac notch. (MeSH) Venous_System_Smooth_Muscle_Tissue Venous System Smooth Muscle Tissue Teres Major Muscle Teres_Major_Muscle Secretions of the skin. Skin-Fluids, Secretions Skin Fluids and Secretions Skin Fluid or Secretion Skin Fluid and Secretion Skin_Fluid_or_Secretion Pharyngeal_Muscle Pharyngeal Muscles Pharyngeal Muscle The muscles of the pharynx, the inferior, middle and superior constrictors, salpingopharyngeus, and stylopharyngeus. (MeSH) Right Hypochondriac Region Right_Hypochondriac_Region Vena_Cava Vena Cava Gastric_Muscular_Coat Gastric Muscular Coat Esophageal_Tissue Esophageal Tissue Cervical_Spinal_Nerve_Root Cervical Spinal Nerve Roots Cervical Spinal Nerve Root Middle Third of the Esophagus Middle Third of Esophagus Middle_Third_of_the_Esophagus Left Adrenal Gland Left_Adrenal_Gland Masseter_Muscle Masticatory Muscles Masticatory Muscle Masseter Muscle Muscles arising in the zygomatic arch that close the jaw. (MeSH) Gastric Muscularis Mucosa Gastric_Muscularis_Mucosa Right Hepatic Duct Right_Hepatic_Duct Venule Venule Flexor_Digitorum_Longus Flexor Digitorum Longus Peyer_s_Patch_Germinal_Center Peyer's Patch Germinal Center Cervical_Spinal_Cord Cervical Spinal Cord Cervical Portion of Spinal Cord Eustachian_Valve Eustachian Valve Left Testis Left_Testis Lower Third of the Esophagus Lower Third of Esophagus Lower_Third_of_the_Esophagus Splenic Hilum Splenic_Hilum Alveolar_Cell Alveolar Cell A cell found in the walls of the pulmonary alveoli; the term is limited to alveolar epithelial cells (type I and type II alveolar cells). Peripheral_Nervous_System_Part Peripheral Nervous System Part Tongue Muscle Tongue_Muscle Biliary_Tract Tract, Biliary Biliary Tract Bile Tract Gastric Artery Gastric_Artery Central_Canal Central Canal of Spinal Cord Central Canal Band Cell A late precursor of a granulocyte in which the nucleus is in the form of a curved or coiled band, not having acquired the typical multilobar shape of the mature polymorphonuclear neutrophil. Band_Cell Nutrient_Artery Nutrient Artery Bulboglandular Bulboglandular blood vessel Vessel Blood vessel Blood Vessel Blood_Vessel A tubular structure through which the blood circulates in the body. Blood vessels constitute a network composed of arteries, arterioles, capillaries, venules, and veins. A cell found in the gastric mucosa that produces and secretes digestive enzymes and acid. Gastric Glandular Cell Gastric_Glandular_Cell Superior_Semicircular_Canal Superior Semicircular Canal Columnar_Epithelium Columnar Epithelium Ridge_of_the_Aqueductus_Fallopii Ridge of the Aqueductus Fallopii Splenic_Hilar_Lymph_Node Splenic Hilar Lymph Node Spinal Cord Part Spinal_Cord_Part Splenic Lymphoid Follicle B-Cell Zone of the Spleen B-Cell Zone of Spleen Splenic_Lymphoid_Follicle Umbilical_Fissure Umbilical Fissure Falx_Cerebri Falx of Cerebrum Falx Cerebri Cerebral Falx Intrinsic_Tongue_Muscle_Transverse_Component Intrinsic Tongue Muscle Transverse Component Sciatic_Nerve Sciatic Nerve Alpha_Cell A cell in the periphery of the pancreatic islets that secretes glucagon. Glucagon Secreting Cell Glucagon Cell Alpha Cell Prolymphocyte Prolymphocyte A medium-sized round lymphocyte of B or T-cell lineage with prominent nucleoli. It is an intermediate cell between the lymphoblast and the small, mature lymphocyte. Anterior Abdominal Wall Muscle Anterior_Abdominal_Wall_Muscle Rib 1 Rib_1 A cell that develops from hematopoietic stem cells. An immature lymphocyte represents of one of five stages of lymphocyte maturation. It is estimated 90% of immature lymphocytes die in the thymus and bone marrow. Immature Lymphocyte Immature_Lymphocyte Gastric Mucosa Gastric_Mucosa Superior Rectus Muscle Superior_Rectus_Muscle Epithelium composed of a single layer of cells, appearing as layered because the column-shaped cells vary in height so the nuclei are at different levels. The basal portions of all the cells are in contact with the basement membrane. It lines the respiratory system and the male reproductive tract. The cilia in the respiratory tract are motile, while the stereocilia in the male reproductive tract are immobile. Pseudostratified Columnar Ciliated Epithelium Pseudostratified_Columnar_Ciliated_Epithelium A continuous, insulating monolayer of cuboidal/columnar epithelium which extends from the margins of the optic nerve head to the ora serrata where it is continuous with the pigment epithelium of the pars plana. This cell layer has many physical, optical, metabolic/biochemical and transport functions which play a critical role in the normal visual process, including acting as a selective filter to determine what nutrients reach the retina from the choroid. Retinal Pigment Epithelium RPE Retinal_Pigment_Epithelium Splenic Pulp The parenchyma of the spleen, consisting of lymphocytes and macrophages. It lies between the splenic trabecula. Red pulp is the part suffused with blood and white pulp consists of areas of lymphatic tissue where there are sleeves of lymphocytes and macrophages. Splenic_Pulp Renal_Tubule Renal Tubule Umbilical_Region Umbilical Region Adrenal Gland Tissue Adrenal_Gland_Tissue Ganglion Cell Layer Ganglion_Cell_Layer Nucleus_of_the_Solitary_Tract External_Anal_Sphincter External Anal Sphincter Subcellular_Anatomy Subcellular Anatomy Cellular Anatomy Cell Anatomy Phrenic Artery Phrenic_Artery Right_Common_Carotid_Artery Right Common Carotid Artery Superior Profunda Artery Arteria Profunda Brachii Superior_Profunda_Artery Periosteum The outer membrane that surrounds a bone. It contains connective tissue, capillaries, nerves, and a number of types of cell, including osteoclasts. The periosteum plays an important role in bone repair and growth. Periosteum Renal_Tubule_Basement_Membrane Renal Tubule Basement Membrane Adrenal Gland Capsule Adrenal_Gland_Capsule Radial_Nerve Radial Nerve Palmar_Hand_Interosseus_Muscle Palmar Hand Interosseus Muscle Ganglionic Layer The fifth layer of the cerebral cortex, composed of the largest pyramidal cells (Martinotti's cells and Betz's cells), and traversed by a layer of horizontally arranged fibers. Ganglionic Layer of the Cerebral Cortex Inner Pyramidal Cell Layer Internal Pyramidal Cell Layer Ganglionic_Layer Large Pyramidal Cell Layer Nucleus_of_the_Spinal_Tract_of_the_Trigeminal_Nerve Nucleus of the Spinal Tract of the Trigeminal Nerve Right Cerebral Hemisphere Right Brain Hemisphere Right_Cerebral_Hemisphere External_Canal Horizontal Canal External Canal Endosteum Endosteum Superior Parietal Convolution Superior_Parietal_Convolution Dorsal_Hand_Interosseous_Muscle Dorsal Hand Interosseous Muscle Hand Digit 4 Phalanx Hand_Digit_4_Phalanx Axilla The hollow under the arm where it is joined to the shoulder. Underarm Axilla Armpit The body system that includes all organs involved in reproduction and in the formation and voidance of urine. genitourinary system genitourinary Urogenital System Genitourinary System Genitourinary_System Lower_Extremity Lower Limb Lower Extremity Hindlimb Phrenic_Nerve Phrenic Nerve Extremities Body limbs, consisting of right upper and lower (arm and leg) and left upper and lower (arm and leg). Non-Trunk Limbs Extremities Alveolar_Sac The terminal dilation of an alveolar duct that gives rise to alveoli in the lung. Alveolar Sac Lower_Jaw Lower Jaw Splenic_Sinus Splenic Sinus Superior_Temporal_Gyrus Superior Temporal Gyrus Uvea Uveal Tract Uvea Tunica Vasculosa of Eyeball Iris, Ciliary Body and Choroid Apex_of_the_Pericardium Apex of the Pericardium Hand_Digit_5_Phalanx Hand Digit 5 Phalanx Pillar_Cell Pillar Cell A flattened cell that rests on the tympanic lip of the spiral lamina (inner pillar cell) and on the basilar membrane (outer pillar cell), thereby forming the tunnel of the Organ of Corti. Immature_Granulocyte Immature Granulocyte A not-yet-mature white blood cell with staining granules in its cytoplasm. The staining granules may be neutrophilic, acidophilic, or basophilic in character. There are indications that an immature granulocyte count is a better measure of infection and sepsis than a total white blood cell count and comparable to absolute neutrophil count. Bartholin's Gland Bartholin_s_Gland Plantar Foot Interosseus Muscle Plantar_Foot_Interosseus_Muscle Cleidooccipital Cleidooccipital Peroneal_Nerve Peroneal Nerve Hand_Digit_3_Phalanx Hand Digit 3 Phalanx Alveolar_Duct Alveolar Duct The respiratory passage distal to the respiratory bronchiole. Alveolar sacs and alveoli arise from the alveolar duct. Lumbosacral Region Lumbosacral_Region Taste_Bud_Basal_Cell Taste Bud Basal Cell A small, round cell found in the lower part of the epidermis of the taste bud. It differentiates into a new receptor cell and renewed about every 10 days. Superior Temporal Convolution Superior_Temporal_Convolution Pia Mater The delicate, highly vascular, innermost membrane encasing the brain and spinal cord. Pia_Mater Vagus Nerve Tenth Cranial Nerve Pneumogastric Nerve Cranial Nerve X Vagus_Nerve Promyelocyte Promyelocyte A cell of the bone marrow that is derived from myeloblasts and will give rise to myelocytes, precursors of myeloid cells and neutrophil granulocytes. Renal Medulla Medullary Portion of the Kidney Medullary Portion of Kidney Renal_Medulla Dorsal_Foot_Interosseous_Muscle Dorsal Foot Interosseous Muscle Basilar Artery BA Basilar_Artery Central_Nervous_System_Part Central Nervous System Part Jaw Jaw Splenic Trabeculae Splenic Trabecula Dense connective tissue structures composed of collagen, elastic, reticular fibers, and smooth muscle cells. They are projections from the splenic capsule into the parenchyma. The arrangement of the fibers permits the spleen to expand passively and to serve as a small temporary reservoir for blood. The trabeculae which originate at the hilus contain and support trabecular arteries and veins which enter and leave the organ at the hilus. Trabeculae from other areas of the capsule do not contain vessels. Arteries branching out of the trabeculae are immediately surrounded by lymphocytes forming the white pulp. Splenic_Trabecula Thalamencephalon Inter-brain Inter Brain Thalamencephalon Median Nerve Median_Nerve A pleomorphic cell of the pulmonary alveolar epithelium that secretes surfactant and is distinguished by abundant cytoplasm containing numerous lipid-rich multilamellar bodies. Type II Pneumocyte Alveolar Cell Type II Alveolar_Cell_Type_II Superior_Surface_of_the_Liver Superior Surface of the Liver Prepuce_Epithelium Prepuce Epithelium Cleidocephalic Cleidocephalic Hand Phalanx Hand_Phalanx Myelocyte Myelocyte A cell derived from a promyelocyte. It differentiates into a metamyelocyte. It has a diameter of 10-18 micrometer, and an oval or round nucleus with finely granulated chromatin. Superficial_Temporal_Vein Superficial Temporal Vein intrahepatic bile ducts Intrahepatic Bile Duct Intrahepatic_Bile_Duct Splenic Vein Splenic_Vein Parenchyma composed of seminiferous tubules embedded in loose connective interstitial tissue. The interstitial tissue contains clusters of testosterone-secreting Leydig cells, collagen and myoid cells. Testicular_Tissue Testicular Tissue Testicular Parenchyma Upper_Jaw Upper Jaw Femoral_Nerve Femoral Nerve Alveolar_Cell_Type_I Type I Pneumocyte Alveolar Cell Type I A flattened cell of the alveolar epithelium, distinguished by their greatly attenuated cytoplasm and paucity of organelles. Superior_Supratentorial_Cistern Superior Supratentorial Cistern Pinealocyte Pineocyte Pinealocyte A cell of the pineal body with long processes ending in bulbous expansions. Pineocytes receive a direct innervation from sympathetic neurons that form recognizable synapses. The club-shaped endings of pineocyte processes terminate in perivascular spaces surrounding capillaries. Cleidobrachial Cleidobrachial Foot_Phalanx Foot Phalanx Metamyelocyte A cell derived from a promyelocyte and differentiates into a neutrophil. It is nonproliferative and is usually found in bone marrow. Its nucleus is indented and the chromatin clumped and dense. Metamyelocyte Nasal Mucus Nasal_Mucus Obturator Internus Muscle Obturator_Internus_Muscle Lamina_Rara_Interna Lamina Rara Interna Apex of the Lung Apex_of_the_Lung Midcortical Nephron Intermediate Nephron Midcortical_Nephron Hypogastric_Region Hypogastric Region Prostatic_Muscular_Tissue Prostatic Muscular Tissue Human Prostatic Muscular Tissue The supporting structure for the prostate. A dense layer of smooth muscle tissue lies directly underneath the fibrous capsule and another dense layer of circular fibers surrounds the urethra (striated and smooth). In between these two layers is a mesh of smooth muscle tissue in which the prostatic glands are embedded. The primary cell of the parathyroid gland. Its contains secretory granules, large Golgi complexes, and moderate numbers of mitochondria. It produces parathyroid hormone. The cells occur in sheets interspersed with areas of fatty tissue. Occasionally the cells are arranged in follicles. Parathyroid Gland Chief Cell Parathyroid_Gland_Chief_Cell Metatarsal_Bone_Digit_3 Metatarsal Bone Digit 3 Ocular Lens Lens of Eye Lens Crystalline Lens A biconvex transparent structure of the eye through which light is focused on the retina. The lens sits behind the iris and is supported by the zonule, which connects it to the ciliary body. The lens is an avascular structure. Crystalline_Lens Apex of the Heart Apex_of_the_Heart Lumbar_Curve Lumbar Curve Unipolar_Neuron A conducting cell of the nervous system that has only one process extending from the cell body. It is always a sensory neuron. Unipolar Neuron Cell of the Epidermis An epithelial cell of the outer most layer of the skin. Cell_of_the_Epidermis Seminal_Vesicle_Secretion Seminal Vesicle Secretion Obturator Externus Muscle Obturator_Externus_Muscle Middle Cerebral Artery Branch Middle_Cerebral_Artery_Branch Hyparterial_Branch Hyparterial Branch of the Right Main Bronchus Lamina_Spiralis_Ossea Lamina Spiralis Ossea lymph gland Small, bean-shaped organs located along the channels of the lymphatic system. The lymph nodes store special cells that can trap bacteria or cancer cells traveling through the body in lymph. Clusters of lymph nodes are found in the underarms, groin, neck, chest, and abdomen. Also called lymph glands. Lymph Node Lymph node proper Lymph_Node Lymph node lymph node Lymph Gland Lymph Nodes Reticuloendothelial System, Lymph Node Cutaneous_Muscle Cutaneous Muscle A large cell of the parathyroid gland. It has abundant clear cytoplasm packed with glycogen and a basal nucleus. Parathyroid Gland Clear Cell Parathyroid_Gland_Clear_Cell Orbicularis_Oculi Orbicularis Oculi Platysma Myoides Platysma_Myoides Lymphatic_Vessel_Endothelium Lymphatic Vessel Endothelium Aortic Opening Aortic_Opening Metatarsal_Bone_Digit_4 Metatarsal Bone Digit 4 Hyoid_Muscle Hyoid Muscle Lumbar_Vertebra Lumbar Vertebrae Lumbar Vertebra Lumbar_Nerve Lumbar Nerve Present at many sites of the body. Multiple Sites, Person Multiple Anatomic Sites Multiple_Anatomic_Sites Perikaryon Perikaryon Cell Body Undersurface_of_the_Temporal_Lobe Undersurface of the Temporal Lobe The Golgi Tendon Organ is located within the tendons found on each end of a muscle. It responds to increased muscle tension or contraction as exerted on the tendon, by inhibiting further muscle contraction, which protects against muscle damage. The proprioceptive sensory neuron of a Golgi tendon organ, projects to the motor neurons located within the ventral horn of the spinal cord, where the inhibition occurs. Unlike the muscle spindle, Golgi tendon organs do not indicate muscle length, but rather muscle tension. Neurotendinous Organ Neurotendinous Spindle Golgi_Tendon_Organ Golgi Tendon Organ Golgi's Tendon Organ Golgi's Tendon Spindle Uncus Uncus Occipital_Artery Occipital Artery Plantar_Fascia Plantar Fascia Hypopharyngeal_Aspect_of_the_Aryteno-epiglottic_Fold Hypopharyngeal Aspect of the Aryteno-Epiglottic Fold The anatomic system that includes the lymph nodes, lymphoid tissues in various organs (spleen, thymus, tonsils, gastrointestinal tract), and lymphatic vessels. It is part of the immune system that offers protection against infections. Lymphatic System Lymphatics Lymphatic system (all sites) lymphatic system Lymphatic_System Reticuloendothelial System, Lymphatic System Lymphatic system Lamina Terminalis Cistern Lamina_Terminalis_Cistern Internal Pterygoid Muscle Internal_Pterygoid_Muscle Aortic_Arch_Branch Aortic Arch Branch Plantar Region Plantar_Region Left Lung Terminal Bronchiole Left_Lung_Terminal_Bronchiole Undersurface_of_the_Frontal_Lobe Undersurface of the Frontal Lobe Obturator Muscle Obturator_Muscle Parathyroid Gland Capsule Parathyroid_Gland_Capsule Microvillus Microvillus Large_Cleaved_Cell An activated lymphocyte with a diameter of about 12 micrometers, a nucleus with deep folds or clefts and clumped chromatin. Large Cleaved Cell Trigonum Hypoglossi Hypoglossal Triangle Hypoglossal_Triangle Mastocyte Mast Cell Marrow Mast Cell Mast Cells Mast_Cell Basophils, Tissue Mast cells are hematopoietic tissue cells that contain coarse, basophilic, metachromatic granules. They are believed to contain heparin and histamine and derive from hematopoietic progenitor cells. Basophilic Histiocyte mast cell Internal_Plantar_Artery Internal Plantar Artery Abductor_Pollicis_Longus Abductor Pollicis Longus Lower_Respiratory_Tract_Cartilage Lower Respiratory Tract Cartilage Mediastinum mediastinum Mediastinum sentinel lymph node Sentinel Node Sentinel Lymph Node Sentinel_Lymph_Node The first lymph node that is affected by cancer spread from the primary site. Sentinel lymph node biopsy is part of the staging work-up to determine early metastasis to regional lymph nodes in patients with breast carcinoma or melanoma. Large_Intestinal_Crypt_of_the_Lieberkuhn Large Intestinal Crypt of Lieberkuhn Hypothalamohypophyseal Portal System Hypothalamohypophyseal_Portal_System Cuneiform_Bone_of_the_Foot Cuneiform Bone of the Foot Intercalated Disk Intercalated_Disk Occipital Sulcus Occipital_Sulcus Parahippocampal Gyrus Parahippocampal_Gyrus Muscle_Spindle The Muscle Spindle is composed of intrafusal fibers that are located within and run parallel to the extrafusal fibers of skeletal muscle. When the extrafusal fibers are stretched, the intrafusal fibers of the spindle stretch as well. When stretching occurs, the sensory neuron from the muscle spindle signals the motor neurons located within the ventral horn of the spinal cord. This signal causes the motor neurons to fire, resulting in contraction of the muscle. This reflex arc provides negative feedback. The muscular contraction induced by the stretching works against or negates further muscle stretch. This mechanism helps to maintain proper muscle tension or tone. Although the muscle spindle helps to maintain proper muscle tension, unlike the Golgi tendon organ, it is not an indicator of muscle tension, but rather of muscle length. Muscle Spindles Muscle Spindle Lunate Sulcus Lunate_Sulcus Upper_Opening_of_the_Thorax Upper Opening of the Thorax Diencephalon Diencephalon Hilar Area of the Left Lung Hilar_Area_of_the_Left_Lung Ovarian_Follicle_Fluid Ovarian Follicle Fluid Cementocyte Cementocyte A cell in a hollow cavity of cellular cementum, ranging in shape from round to oval or flattened, and exhibiting numerous protoplasmic processes extending from its free surface. Middle Frontal Convolution Middle_Frontal_Convolution peripheral stem cells Peripheral Blood Stem Cells An immature (progenitor) cell circulating in the peripheral blood. It has the capacity for replication and differentiation to mature blood cells. Peripheral Blood Stem Cell PBSC Peripheral_Blood_Stem_Cell Peripheral Stem Cells Membrane A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. membrane Membrane Cuboidal_Epithelium Cuboidal Epithelium Hypophyseal_Portal_Vein Hypophyseal Portal Vein Large_Intestinal_Glandular_Cell Intestinal enterocytes are low columnar to cuboidal cells comprising the majority of the epithelial tissue in the intestine and colon. They have both absorptive and secretory functions, absorbing water, sodium and short-chain fatty acids while secreting bicarbonate and potassium. Colonocytes originate from stem cells located at the base of the crypts. Enterocyte production, differentiation, and turnover occurs in topographically distinct regions of crypts. The transformation of colonic epithelial cells are frequently involved in colorectal cancers. Large Intestinal Glandular Cell Occipital Horn of the Lateral Ventricle Occipital_Horn_of_the_Lateral_Ventricle Proprioceptor Proprioceptor Proprioceptive Sensory Neuron Upper Gastrointestinal Tract Upper_Gastrointestinal_Tract Thermoreceptor Thermoreceptors Thermoreceptor The dorsal posterior subdivision of the diencephalon. The epithalamus is generally considered to include the habenular nuclei and associated fiber bundles, the pineal body, and the epithelial roof of the third ventricle. (MeSH) Epithalamus Epithalamus Left_Lung_Respiratory_Bronchiole Left Lung Respiratory Bronchiole Parasympathetic_Ganglion Parasympathetic Ganglion Cementoblast A large cell ranging in shape from cuboidal to squamous with a large central nucleus. The nucleus usually has a single nucleolus, which is active in the formation of cementum. Cementoblast Antitragus Antitragus Salivary Gland Myoepithelial Cell Salivary_Gland_Myoepithelial_Cell Middle Frontal Gyrus Middle_Frontal_Gyrus Somatic_Cell somatic cells Somatic Cells Somatic Cell Large Intestinal Mucosa Mucosa consisting of the epithelium, basement membrane, lamina propria mucosae and lamina muscularis mucosae of the distal portion of the digestive tract from the small intestine to the anus. Large_Intestinal_Mucosa Greater Tuberosity Greater_Tuberosity Occipito-Frontalis Muscle Occipito-frontalis_Muscle Middle_Constrictor_Muscle Middle Constrictor Muscle Curved Tube Curved_Tube thalamus Thalamus Thalamus Parafascicular Nucleus of the Thalamus Parafascicular_Nucleus_of_the_Thalamus Prostate_Gland_Secretion Prostate Gland Secretion Bulbourethral_Gland_Secretion Bulbourethral Gland Secretion Choroid Plexus of the Third Ventricle Choroid_Plexus_of_the_Third_Ventricle Left_Lung_Alveolus Left Lung Alveolus Upper Esophageal Sphincter UES Upper_Esophageal_Sphincter Mechanoreceptors Mechanoreceptor Mechanoreceptor Hypothalamus is an important supervisory center in the brain, rich in ganglia, nerve fibers, and synaptic connections. It is composed of several sections called nuclei, each of which controls a specific function. The hypothalamus regulates body temperature, blood pressure, heartbeat, metabolism of fats and carbohydrates, and sugar levels in the blood. Through direct attachment to the pituitary gland, the hypothalamus also meters secretions controlling water balance and milk production in the female. The role of the hypothalamus in awareness of pleasure and pain is well established in the laboratory. It is involved in the expression of emotions, such as fear and rage, and in sexual behaviors. Despite its numerous vital functions, the hypothalamus in humans accounts for only 1/300 of total brain weight, and is about the size of an almond. Structurally, it is joined to the thalamus; the two work together to monitor the sleep-wake cycle. hypothalamus Hypothalamus Hypothalamus Antihelix Antihelix Occipital-temporal_Gyrus Occipital-Temporal Gyrus Fusiform Gyrus Duct duct Duct Ground Substance Ground_Substance Cuneiform Cartilage Cuneiform_Cartilage Middle_Cuneiform_Bone_of_the_Foot Middle Cuneiform Bone of the Foot Parafollicular_Cell Parafollicular Cell C-Cell A neuroendocrine cell found in the thyroid gland interspersed among the follicular cells or in clusters between the follicles. It produces and secretes calcitonin in response to its calcium receptor. Large Intestinal Muscular Coat The portion of the intestinal covering that contracts causing peristalsis. It surrounds the weblike submucosa of the distal portion of the digestive tract from the small intestine to the anus. Large_Intestinal_Muscular_Coat Esophagus Secretion Esophagus_Secretion Unmyelinated_Nerve_Fiber Unmyelinated Nerve Fiber Left Lung Bronchiole Left_Lung_Bronchiole Middle_Fossa Middle Fossa Symphysis Amphiarthrosis Amphiarthrosis Crypts_of_the_Lieberkuhn Crypt of Lieberkuhn duodenum Duodenum Duodenum Clear Cells Clear Cell A cell with empty-appearing cytoplasm when viewed with a light microscope. Clear_Cell Common Canaliculus Common_Canaliculus Nerve_and_Perineural_Tissue Nerve Tissue, Neuroepithelial Tissue, and Nerve Sheaths The basic components of the nervous system. They contain neurons, supporting cells, and neuroepithelial cells. Shoulder Joint Shoulder_Joint The largest and most lateral of the basal ganglia lying between the lateral medullary lamina of the globus pallidus and the external capsule. It is part of the neostriatum and forms part of the lentiform nucleus along with the globus pallidus. (MeSH) Putamen Putamen Large Intestinal Muscularis Mucosa The thin layer of smooth muscle fibers usually found as a part of the tunica mucosa deep to the lamina propria mucosae of the large intestine. Large_Intestinal_Muscularis_Mucosa Middle_Lobe_of_the_Prostate Middle Lobe of the Prostate Median Lobe of Human Prostate Intrathecal_Space intrathecal Intrathecal Space Intrathecal White Cell Marrow leukocyte white blood corpuscle White Blood Cell Blood leukocyte WBC - White blood cell Leukocytes white blood cell White Blood Cells Leukocyte WBC Leukocyte Reticuloendothelial System, Leukocytes leukocytes Interphalangeal_Joint_of_the_Hand Interphalangeal Joint of the Hand Innominate Artery Branch Innominate_Artery_Branch Greater Curvature of the Stomach Greater Curvature of Stomach, NOS Greater Curvature Greater_Curvature Crus_Helicis Crus Helicis Ductal_Epithelial_Cell Ductal Epithelial Cell Ductal Cells Ductal Cell A stratified columnar epithelial cell that surrounds a lumen in a gland such as the breast, pancreas or prostate. These cells are uniform in appearance and have uniformly sized and shaped nuclei. Common_Carotid_Artery Common Carotid Artery Perineural Tissue Tissue that surrounds nerves. Perineural_Tissue Island of Reil Central Lobe Central_Lobe Sigmoid Artery Sigmoid_Artery Gallbladder_Smooth_Muscle_Tissue Gallbladder Smooth Muscle Tissue Central Portion of the Breast Central Portion of Breast Central_Portion_of_the_Breast The part of the breast which is in the center. Substantia Nigra A large cell mass extending forward, over the dorsal surface of the crus cerebri, from the rostral border of the pons into the subthalamic region. It is composed of a dorsal stratum of closely spaced pigmented cells, the pars compacta, and a larger ventral region of widely scattered cells, the pars reticulata. The pars compacta includes numerous cells that project forward to the striatum (caudate nucleus and putamen) and contain dopamine, which acts as the primary neurotransmitter at the synaptic endings. Other, apparently non-dopaminergic cells project to portions of the ventral nucleus of thalamus, the superior colliculus and reticular formation. The nigrostriatal projection is reciprocated by a striatonigral fiber system with multiple neurotransmitters, chief among which is gamma-aminobutyric acid (GABA). The substantia nigra is involved in the metabolic disturbances associated with Parkinson's disease and Huntington's disease. Substantia_Nigra Ulna One of the bones that comprise the forearm. The largest aspect articulates with the humerus at the elbow joint and the smallest portion of the ulna articulates with the carpal bones in the wrist. (On-line Medical Dictionary) Ulna Large_Intestinal_Serosal_Surface Large Intestinal Serosal Surface The membrane lining the external walls of the distal portion of the digestive tract from the small intestine to the anus. It consists of mesothelium on a connective tissue layer and it secretes a watery exudate. Thymic_Capsule Thymic Capsule Posterior_Surface_of_the_Prostate Posterior Surface of the Prostate Posterior Surface of Human Prostate Interphalangeal Joint of the Foot Interphalangeal_Joint_of_the_Foot Innominate Vein Innominate_Vein Reticulocyte Polychromatophilic erythrocyte Diffusely basophilic erythrocyte Immature erythrocytes that have just undergone extrusion of their cell nucleus. They still contain some organelles that gradually decrease in number as the cells mature. Polychromatophilic Erythrocyte Reticulocytes Blood reticulocyte Polychromatophilic_Erythrocyte Marrow reticulocyte T Cells Thymus-Dependent Lymphocytes T cell thymus derived lymphocyte T-Lymphocyte T Cell T-Cell T-Lymphocytes A thymocyte-derived lymphocyte of immunological importance that is long-lived (months to years) and is responsible for cell-mediated immunity. T lymphocyte cells form rosettes with sheep erythrocytes and, in the presence of transforming agents (mitogens), differentiate and divide. These cells have the characteristic T3 surface marker and may be further divided into subsets according to function, such as helper, cytotoxic, etc. T-Cells T-Lymphocyte Central_Artery Central Artery Ascending colon Ascending Colon Ascending_Colon Subthalamic Nucleus Lens-shaped structure on the inner aspect of the internal capsule. The subthalamic nucleus and pathways traversing this region are concerned with the integration of somatic motor function. (MeSH) Subthalamic_Nucleus Bone_Marrow_Stem_Cell_with_Potential_for_Megakaryocytic_and_Erythroid_Differentiation Bone Marrow Stem Cell with Potential for Megakaryocytic and Erythroid Differentiation An undifferentiated cell which can undergo division and can give rise to either a megakaryocyte or a cell in the erythrocytic series. Eyelid_Connective_Tissue Eyelid Connective Tissue The quarter of the breast which is superior and medial. Upper-inner Quadrant of Breast Upper-Inner Quadrant of the Breast Upper-inner_Quadrant_of_the_Breast Thymic_Epithelial_Cell A reticular epithelial cell generated in the thymus that affects T-lymphocyte cell production. Thymic epithelial cells are organized in a three-dimensional network rather than as a sheet of cells on a basement membrane. Thymic Epithelial Cell TEC A mature white blood cell, differentiated in the bone marrow, activated to preferentially migrate to the bone marrow. Bone_Marrow-Homing_Plasma_Cell Bone Marrow-Homing Plasma Cell Lateral_Lobe_of_the_Prostate Lateral Lobes of Human Prostate Lateral Lobe of the Prostate Insula Insula Erythroblast Nucleated red blood cell Erythrocytes, Nucleated Erythroblast Normoblasts Erythroblasts Nucleated red cell Immature, nucleated erythrocytes occupying the stage of erythropoiesis that follows formation of erythroid progenitor cells and precedes formation of reticulocytes. Popularly called normoblasts. (MeSH) NUCLEATED RBCS Cuboid_Bone Cuboid Bone Neuroendocrine_System A system of neurosecretory neurons that release hormones to the circulatory system. neuroendocrine Neurosecretory System Neuroendocrine System Neuroendocrine Common_Bony_Limb Common Bony Limb Cementum Cementum Bone-like rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal. It serves as an attachment for the periodontal ligament, thus assisting in tooth support. astrocyte Astroglia Astrocytus Astrocytes Astrocyte The largest and most numerous neuroglial cells in the brain and spinal cord. Astrocytes are irregularly shaped with many long processes, including those with 'end feet' which form the glial (limiting) membrane and directly and indirectly contribute to the blood brain barrier. They regulate the extracellular ionic and chemical environment, and 'reactive astrocytes' (along with microglia) respond to injury. Astrocytes have high- affinity transmitter uptake systems, voltage-dependent and transmitter-gated ion channels, and can release transmitter, but their role in signaling (as in many other functions) is not well understood. (MeSH) Astrocyte Crystal_of_Reinke Crystal of Reinke Ear_Skin Ear Skin The part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube and consisting of the diencephalon and telencephalon. (MeSH) Prosencephalon Prosencephalon Neuroepithelial_Tissue Neuroepithelial Tissue Tissue composed of neuroepithelial cells. The latter include astrocytes, oligodendrocytes, ependymal cells, neuroblasts, and olfactory receptor cells. Lower-inner Quadrant of Breast Lower-Inner Quadrant of the Breast The quarter of the breast which is inferior and medial. Lower-inner_Quadrant_of_the_Breast Posterior_Lobe_of_the_Prostate Posterior Lobe of the Prostate Posterior Lobe of Human Prostate Temporal_Vein Temporal Vein A structure in a lobe of the thymus 0.5 -2 mm in diameter. The lobule is divided into an outer cortex and inner medulla. Lobules are separated from each other by connective tissue septa, however, the medullary tissue is continuous from lobule to lobule. Lymphocytes, reticular cells and macrophages are found in the lobules. Thymic Lobule Thymic_Lobule A primitive, undifferentiated blood cell which can undergo division and will give rise to a cell in the basophil lineage. Bone Marrow Stem Cell Committed to the Basophil Lineage Bone_Marrow_Stem_Cell_Committed_to_the_Basophil_Lineage Interatrial Septum Interatrial_Septum Interphase_Cell A cell in a resting state. Individual chromosomes are not visible. The cell performs all biochemical and physiologic functions and replication of chromatin occurs. Resting Cell Non-dividing Cell Interphase Cell BFU-E - Burst-forming unit erythroid Erythroid_Progenitor_Cell Progenitor Cells, Erythropoietic Colony-Forming Units, Erythroid Committed, erythroid stem cells derived from myeloid stem cells. The progenitor cells develop in two phases: erythroid burst-forming units (BFU-E) followed by erythroid colony-forming units (CFU-E). BFU-E differentiate into CFU-E on stimulation by erythropoietin, and then further differentiate into erythroblasts when stimulated by other factors. (MeSH) Erythropoietic Stem Cells CFU-E BFU-E - Burst-form unit eryth Erythroid Progenitor Cell Stem Cells, Erythroid Erythroid Precursor Cells Erythroid Stem Cell BFU-E Burst-Forming Units, Erythroid Erythroid Progenitor Cells Alpha_Granule Granules found in several types of cells, especially platelets, where they are the most numerous type of granule; contain secretory proteins. Platelet Granule Alpha Granule Medial_Supraclavicular_Lymph_Node medial supraclavicular lymph nodes Medial Supraclavicular Lymph Nodes Medial Supraclavicular Lymph Node Inferolateral_Surface_of_the_Prostate Inferolateral Surface of the Prostate Inferolateral Surface of Human Prostate Upper-outer_Quadrant_of_the_Breast Upper-outer Quadrant of Breast Upper-Outer Quadrant of the Breast The quarter of the breast which is superior and lateral. Lower_Gastrointestinal_Tract Lower Gastrointestinal Tract Perineal_Artery Perineal Artery Common Femoral Artery Branch Common_Femoral_Artery_Branch Internal_Wall_of_the_Tympanum Internal Wall of the Tympanum Hymen Hymen Bursa-Dependent Lymphocytes B Cells B-Lymphocyte B-Cells B-Lymphocyte B Cell B-Lymphocytes B Lymphocytes Immunologically important lymphocyte that is not thymus-dependent, is either short-lived and naive or long-lived and of memory phenotype, and resembles the bursa-derived lymphocyte of birds in that it is responsible for the production of immunoglobulins. Bursa-Equivalent Lymphocyte B-Cell B cells B lymphocytes Interosseous Artery Interosseous_Artery Inner Segment of the Photoreceptor Cell Inner_Segment_of_the_Photoreceptor_Cell Surgically-Created_Resection_Cavity Surgically-Created Resection Cavity Surgically-Created Cystic Resection Cavity SCRC Resection Cavity Intrasurgical Resection Cavity The space that is left after the surgical removal of a body part or tumor. Shaft of the Hair Shaft_of_the_Hair Lower-outer Quadrant of Breast Lower-Outer Quadrant of the Breast The quarter of the breast which is inferior and lateral. Lower-outer_Quadrant_of_the_Breast Surface_of_the_Prostate Surface of the Prostate Surface of Human Prostate Adenohypophysial_Cell Adenohypophysial Cell One of five types of secreting cells (somatotrophs, lactotrophs, corticotrophs, thyrotrophs, and gonadotrophs) found in the anterior lobe of the pituitary gland. Bone_Marrow_Myeloid_Stem_Cell_with_Potential_to_Differentiate_to_Granulocytic_and_Monocytic_Lineages A primitive, undifferentiated blood cell which can undergo division and give rise to white blood cells in the neutrophil, eosinophil, basophil or monocyte lines. Bone Marrow Stem Cell with Potential to Differentiate to Granulocytic and Monocytic Lineages Lower Opening of the Thorax Lower_Opening_of_the_Thorax Common Hepatic Duct Common_Hepatic_Duct basal cells Basal Cells Basal Cell Basal_Cell Internal Pubic Artery Internal_Pubic_Artery A tall, slender cell extending from the basilar membrane to the free surface of the organ of Corti. Each cell surrounds an inner hair cell. Inner Supporting Cell Inner Phalangeal Cell Inner_Supporting_Cell Primitive Bone Marrow Myeloid Stem Cell Primitive_Bone_Marrow_Myeloid_Stem_Cell Thoracic_Vein Thoracic Vein Nerve sheath that is part of the myelinated segment of an axon. It is composed of Schwann cells. Sheath of Schwann Neurilemma Sheath_of_Schwann Axillary Tail of the Breast Axillary Tail of Breast Axillary_Tail_of_the_Breast Lower Respiratory System Lower_Respiratory_System Short Saphenous Vein Short_Saphenous_Vein A specialized form of connective tissue consisting primarily of adipocytes (fat cells), surrounded by a meshwork of collagen fibers. adipose Body Fat BODYFAT Adipose Tissue Adipose_Tissue Hyoid Bone Hyoid_Bone Common_Carotid_Artery_Branch Common Carotid Artery Branch Lesser Curvature of the Stomach Lesser Curvature of Stomach, NOS Lesser_Curvature Inner Wall of the Vestibule Inner_Wall_of_the_Vestibule Interpenduncular Cistern Interpenduncular_Cistern A follicle believed to be formed by degeneration of suppressed chief cells. Secretion of hormonal and/or other substances into intercellular spaces progressively forms follicular cavities. Parathyroid Gland Follicle Parathyroid_Gland_Follicle Labium Majus Labium_Majus Obturator Artery Obturator_Artery Short_Bone Short Bone Thymic Vein Thymic_Vein Caudate_Nucleus Nucleus Caudatus Caudate Nucleus An elongated gray mass of the neostriatum located adjacent to the lateral ventricle of the brain. (MeSH) Lumbar Artery Lumbar_Artery Shoulder Girdle Shoulder_Girdle Heart Septum Heart_Septum The inner membrane of a joint capsule surrounding a freely movable joint. It is loosely attached to the external fibrous capsule and secretes synovial fluid. (MeSH) Synovium Synovial Membrane Synovial_Membrane Erector Spinae Erector_Spinae Neuron_and_Supporting_Cell_of_the_Nervous_System Neuron, Neuroepithelial Cell, and Supporting Cell of the Nervous System Neural Cell, Neuroepithelial Cell, and Supporting Cell of the Nervous System Nerve Cell, Neuroepithelial Cell, and Supporting Cell of the Nervous System A grouping for all the different types of cells of the nervous system. Hyoepiglottic Ligament Hyoepiglottic_Ligament Retinal_Artery Retinal_Artery Common_Femoral_Artery Common Femoral Artery Pylorus Pylorus Innominate Artery Brachiocephalic Artery Innominate_Artery Interosseous Vein Interosseous_Vein Parathyroid Gland Oxyphilic Cell Parathyroid Gland Oxyphil Cell A cell of the parathyroid gland that has condensed chromatin in a small round nucleus. Its cytoplasm is composed of tightly packed mitochondria and glycogen granules, with rare secretory granules, stains pink, and the margin is usually observed. Parathyroid_Gland_Oxyphil_Cell Labium Minus Labium_Minus Lower_Extremity_Part Lower Extremity Part Simple Columnar Epithelium Epithelium composed of a single layer of cells that are taller than they are wide. They are found lining the stomach, intestine, uterus and gall bladder. Simple columnar epithelium is efficient at secretion and absorption. Simple_Columnar_Epithelium Commissure Commissure Gallbladder Neck Gallbladder_Neck tissue Tissues Tissue Tissue Tissue Types Normal Tissue An aggregate of cells with similar or identical specialized characteristics, contributing to the performance of a specific function. Tissues are parts of organs. Fovea_Centralis Area consisting of a small depression in the retina containing only cones and where vision is most acute. Fovea Centralis Fovea Basophilic Leukocyte Marrow Basophil Basophilic Granulocyte Blood Basophil Basophil Basophil basophil Basophils bronchioles Bronchiolus Bronchioles Bronchiole Bronchiole Thoracic Aorta Branch Thoracic_Aorta_Branch soft tissue Soft Tissue Soft_Tissue Transverse Portion of the Duodenum Transverse Portion of Duodenum Third Portion of the Duodenum Third Portion of Duodenum Third_Portion_of_the_Duodenum Colostrum Colostrum Macula Macula tonsils Tonsils Tonsil Tonsil Vitreous_Humor Vitreous Humor A clear, avascular, gelatinous body that occupies the posterior chamber of the eye. It is bounded by the retina except anteriorly where it lies adjacent to the lens and iris. Capillary Capillary Extensor_Carpi_Radialis_Longus Extensor Carpi Radialis Longus Remnants_of_the_Central_Canal_of_the_Spinal_Cord Remnants of the Central Canal of the Spinal Cord A solid strand of modified ependyma left from embryonic development of the neural tube. Eosinophilic Leukocyte Acidophilic Leukocyte Eosinophils Eosinophilic Granulocyte Eosinophil Granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin. eosinophil Eosinophil Marrow Eosinophil Eosinocyte Blood eosinophil Blood Eosinophil Thoracic Aorta Thoracic_Aorta Skin Integument Skin An organ that constitutes the external surface of the body. It consists of the epidermis, dermis, and skin appendages. Thymic_Epithelial_Cell_Capable_of_Differentiating_Towards_Cortical_Cell_Type Thymic Epithelial Cell Capable of Differentiating Towards Cortical Cell Type A reticular epithelial cell generated in the thymus that, in optimal condition, can become a cortex type of thymus cell that mediates positive selection of developing thymocytes. Epithelium composed of a single layer of cells attached to a basement membrane. Simple Epithelium Simple_Epithelium Yellow endocrine tissue that forms in a ruptured Graafian follicle following the release of an ovum. Corpus Luteum Corpus_Luteum Trabecular_Meshwork A porelike structure surrounding the entire circumference of the anterior chamber through which aqueous humor circulates to the canal of Schlemm. (MeSH) Trabecular Meshwork Inner Rod of the Corti Inner Rod of Corti Inner_Rod_of_the_Corti Colorectal_Zone_of_the_Anal_Canal Colorectal Zone of the Anal Canal Anterior Surface of the Prostate Anterior Surface of Human Prostate Anterior_Surface_of_the_Prostate Pancreatico-Duodenal Artery Pancreatico-Duodenal_Artery Neck of the Tooth Neck of Tooth Collum Dentis Collum_Dentis Brachial_Plexus brachial plexus Brachial Plexus Thoracic Lymph Node Thoracic_Lymph_Node Base of the Prostate Base of Human Prostate Base_of_the_Prostate Simple_Cuboidal_Epithelium Simple Cuboidal Epithelium Epithelium composed of a single layer of box-shaped cells found lining glands, ducts of glands and kidney tubules. This type of epithelium is efficient at secretion and absorption. Serum The clear portion of the blood that remains after the removal of the blood cells and the clotting proteins. serum Serum Semispinalis Cervicis Semispinalis_Cervicis Colloid Granular Leukocytes A leucocyte with conspicuous cytoplasmic granules. In humans the granulocytes are also classified as polymorphonuclear leucocytes and are subdivided according to the staining properties of the granules into eosinophils, basophils and neutrophils. (from On-line Medical Dictionary) Blood granulocytic cell granular leukocyte Granulocytic cell Granulocyte Granulocytes Granulocyte Tubular structure in continuation with the trachea, serving as air passage. It terminates in the lung (terminal bronchiole). bronchus bronchi Bronchus Bronchi Bronchus Extensor Carpi Radialis Brevis Extensor_Carpi_Radialis_Brevis Thoracic_Duct Thoracic Duct Fusiform_Cell Fusiform Cell A cell with spindle-like morphologic characteristics.. NK Cell NK Cells NK cells natural killer cells Natural_Killer_Cell K Cells NK-Cell Killer Cells, Natural K lymphocyte Natural Killer Cell NK killer cells Cytotoxic cell Natural killer cells are cells that resemble large granular lymphocytes. They do not express markers of either T or B cell lineage. They are positive for CD16, CD56, and CD 94. These cells do possess Fc receptors for IgG and can kill target cells using antibody-dependent cell-mediated cytotoxicity. They can also use perforin to kill cells in the absence of antibody and killing may occur without previous sensitization. Killer Cell Killer Cells Pulp_Horn The portion of the pulp chamber that extends towards a cusp. Pulp Horn Tricuspid Valve Tricuspid_Valve Right Pulmonary Artery Right_Pulmonary_Artery Splenium of the Corpus Callosum Splenium_of_the_Corpus_Callosum Apical Prostate Apex of the Prostate Apex of Human Prostate Apex_of_the_Prostate Thick_Filament Thick Filament Hepatic Flexure of the Colon Hepatic Flexure of Colon Hepatic Flexure Hepatic_Flexure Body Region Anatomic Region Named areas of the body. Body_Region Lymphocyte White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each); those with characteristics of neither major class are called null cells. (MSH2001) lymphocyte lymph cell Lymphocytes Lymphocyte Brain White Matter Brain_White_Matter Epithelial_Microvillus Epithelial Microvillus CD4+ T Lymphocytes CD4-Positive T-Lymphocyte CD4 lymphocytes T4 Lymphocytes CD4-Positive T-Lymphocytes helper T cell CD4+ T-Lymphocyte CD4_Plus_T-Lymphocyte CD4-Positive Lymphocytes CELLS.CD4 T4 Cells CD4+ T Lymphocyte Trigeminal Nerve Nervus Trigeminus Fifth Cranial Nerve Cranial Nerve V Trigeminal_Nerve Right Portion of the Diaphragm Right_Portion_of_the_Diaphragm Theca Lutein Cell Theca_Lutein_Cell A cell of the corpus luteum that is derived from the inner layer of the sheath surrounding the graafian follicle. Stapedius Muscle Stapedius Stapedius_Muscle Capsule_of_the_Prostate Prostate Capsule Capsule of the Prostate Capsule of Human Prostate Thymic_Epithelial_Cell_Capable_of_Differentiating_Towards_Both_Cortical_and_Medullary_Type A reticular epithelial cell generated in the thymus that, in optimal conditions, can become either a cortex type of thymus cell that mediates positive selection or a medullary type of thymus cell that mediates negative selection of developing thymocytes. Thymic Epithelial Cell Capable of Differentiating Towards Both Cortical and Medullary Cell Type Piloid Astrocyte Piloid_Astrocyte Splenic Flexure of Colon Splenic Flexure Splenic_Flexure Left_Suprarenal_Vein Left Suprarenal Vein Brachial Artery Brachial_Artery Stapes Stapes Epithelial_Plica Epithelial Plica Brain_Pia_Mater Brain Pia Mater Trigeminal_Nucleus Trigeminal Nucleus Trigeminal Nuclei Nucleus of the Fifth Nerve Nucleus of Fifth Nerve Right_Ovary Right Ovary Erector_Muscle_of_the_Hair Pilor Erectus Erector Muscle of the Hair Erector Muscle of Hair Gallbladder_Body Gallbladder Body Sigmoid_Flexure Sigmoid Flexure of the Colon Sigmoid Flexure of Colon Sigmoid Flexure Alveolar Wall Alveolar_Wall Descending_Colon Descending colon Descending Colon Cerebral_Dura_Mater Brain Dura Mater Epitympanic Recess Attic Epitympanic_Recess Heterophil Granulocyte Polymorphonuclear neutrophils Polymorphonuclear Cell Polymorph Blood PMN Marrow Neutrophil Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes. Blood Segmented Neutrophil neutrophil Polymorphonuclear Leukocytes Neutrophilic Leukocyte Neutrophil Polymorphonuclear Neutrophils Neutrophils Neutrophilic Granulocyte Blood Neutrophil Neutrophil Ependyma_and_Remnants_of_the_Central_Canal_of_the_Spinal_Cord Structures that have evolved from embryonic development of the neural tube. The ependyma is a specialised epithelium lining the ventricles and central canal of the brain and spinal cord. The remnants of the central canal of the spinal cord represent modified ependyma left from embryonic development of the neural tube Ependyma and Remnants of the Central Canal of the Spinal Cord Right Main Bronchus Right_Main_Bronchus Gastrointestinal_Fluid_or_Secretion Fluids and secretions within the passage leading from the mouth to the anus through the pharynx, esophagus, stomach, and intestine which cause digestion. Gastrointestinal Fluids and Secretions Gastrointestinal Fluid or Secretion Gallbladder Fundus Gallbladder_Fundus Esophageal Artery Esophageal_Artery Trochlear_Nerve Trochlear Nerve Fourth Cranial Nerve Cranial Nerve IV Thigh Thigh Thymic_Medullary_Epithelial_Cell An epithelial cell located in the inner portion of the thymus where the T lymphocytes become mature and are released into the circulation. Thymic Medullary Epithelial Cell Perforant_Pathway Perforating Fasciculus Perforant Pathway A pathway of fibers originating in the lateral part of the entorhinal area, perforating the subiculum of the hippocampus, and running into the stratum moleculare of the hippocampus, where these fibers synapse with others that go to the dentate gyrus. It is also called the perforating fasciculus. (MeSH) Head_of_the_Pancreas Head of the Pancreas Head of Pancreas Brain Gray Matter Cerebral_Gray_Matter agranulocyte Mature lymphocytes andmonocytes transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. (MeSH) Non-Granular Leukocyte Agranulocyte Non-Granular Leukocytes Non-Granular_Leukocyte Leukocyte, Mononuclear Leukocytes, Mononuclear Cristae Ampullaris Ampullary Crest Ampullary_Crest Fascia Fascia Frontopolar Artery Frontopolar_Artery Sodium_Channel Sodium Channel Integumentary_System_Part Integumentary System Part Arterial_System_Smooth_Muscle_Tissue Arterial System Smooth Muscle Tissue Nasal Cavity Respiratory Epithelium Nasal_Cavity_Respiratory_Epithelium Sternoclavicular Joint Sternoclavicular_Joint Oculomotor_Muscle Oculomotor Muscle Esophageal_Gland Esophageal Gland Right Lymphatic Trunk Right_Lymphatic_Trunk Wall_of_Human_Prostatic_Duct Wall of Prostatic Duct Wall of Human Prostatic Duct Gyri Breves Insulae Gyri_Breves_Insulae Orbitalis_Muscle Orbitalis Muscle A basophilic cell of the anterior pituitary gland whose granules secrete follicle-stimulating hormone FSH Cell FSH_Cell Cerebral_Arachnoid_Membrane Brain Arachnoid Membrane Diaphragm_Part Diaphragm Part Sternocleidomastoid_Muscle Sternomastoid Muscle Sternocleidomastoid Muscle Nasal_Cavity_Epithelium Nasal Cavity Epithelium Foot_Digit_3_Phalanx Foot Digit 3 Phalanx Esophageal_Glandular_Cell An epithelial cell that covers the lower third of the esophageal lumen. It is also found in the submucosal glands of the esophagus. Esophageal Glandular Cell Growing Follicle Growing_Follicle Right_Lymphatic_Duct Right Lymphatic Duct Pluripotential_Bone_Marrow_Stem_Cell Pluripotent Bone Marrow Stem Cell Functional_Layer_of_the_Endometrium Functional Layer of the Endometrium Microvascular Bed Microcirculatory Bed Microcirculatory_Bed Amygdaloid Nucleus Amygdaloid Body Amygdaloid_Body Lymphatic_Vessel_Smooth_Muscle_Tissue Lymphatic Vessel Smooth Muscle Tissue Stellate Reticulum Stellate_Reticulum Upper_Respiratory_System Upper Respiratory System Labium Labium Epithelium Part Epithelium_Part Blood-Brain_Barrier blood-brain barrier Blood-Brain Barrier Blood Brain Barrier BBB Esophageal_Mucosa Esophageal Mucosa Pleural_Mesothelial_Cell Pleural Mesothelial Cell Hair Hair Foot Digit 4 Phalanx Foot_Digit_4_Phalanx Right Lung Right_Lung Gastric Gland Fundic Gland Fundic_Gland Metatarsophalangeal Joint Metatarsophalangeal_Joint Stereovillus Stereocilium Stereocilium Submandibular_Ganglion Submandibular Ganglion Ampullary_Segment_of_the_Fallopian_Tube Ampullary Segment of the Fallopian Tube Right Lumbar Region Right_Lumbar_Region Gyrus_Longus_Insulae Gyrus Longus Insulae Foot Digit 5 Phalanx Foot_Digit_5_Phalanx Human_Veru_Montanum Human Veru Montanum Esophageal Muscular Coat Esophageal_Muscular_Coat Fungiform Papilla Fungiform_Papilla Anal Column Anal_Column Eyelid Muscle Eyelid_Muscle Metatarsal_Bone Metatarsal Bones Metatarsal Bone Carpal_Bone Carpal Bone Popliteal Artery Popliteal_Artery Prostatic_Epithelium Tissue composed of one or more layers of epithelial cells and a basement membrane. It lines the secretory alveoli and secretory ducts of the prostate. The secretory epithelium consists mostly of pseudostratified columnar cells and basal cells with areas of cuboidal and squamous epithelial cells. The walls of the prostatic urethra and the distal regions of the longer ducts are lined with transitional epithelium. Prostatic Epithelium Epithelium of Human Prostate Gland Pontine Branch Pontine_Branch Distal_Phalanx_of_Foot Distal Phalanx of Foot Antero-Lateral Ascending Tract Antero-lateral_Ascending_Tract Right_Lobe_of_the_Liver Right Lobe of the Liver Hair Follicle Inferior Segment Hair_Follicle_Inferior_Segment Normal Tissue Part Tissue_Part Tonsillar Capsule Tonsillar_Capsule Proximal_Phalanx_of_Foot Proximal Phalanx of Foot Metacarpal_Bone Os Metacarpale Metacarpal Bones Metacarpal Bone Metacarpal Cauda Equina Cauda_Equina Distal_Phalanx_of_Hand Distal Phalanx of Hand Antero-lateral_Column Antero-Lateral Column Stroma of the Prostate Gland Stroma of Human Prostate Gland Prostatic Stroma The non-glandular tissue of the prostate gland, consisting of two major cell types, smooth muscle cells and fibroblasts. Stromal cells are key regulators of growth and differentiation in the prostate. Prostatic_Stroma Hair Bulb Hair_Bulb Right Innominate Vein Right_Innominate_Vein Organ of Special Sense Part Organ_of_Special_Sense_Part Sternocostal_Joint Sternocostal Joint Anal_Region Anal Region Cardiovascular Organ System circulatory system Cardiovascular_System Cardiovascular Body System Body System, Cardiovascular cardiovascular Relating to the heart and the blood vessels or the circulation. Cardiovascular system (all sites) Vascular, Heart Organ System, Cardiovascular Cardiovascular System Proximal Phalanx of Hand Proximal_Phalanx_of_Hand Musculoskeletal_System Musculoskeletal System Anterior_Tibial_Vein Anterior Tibial Vein Anterior_Ulnar_Vein Anterior Ulnar Vein Visceral Epithelial Cell Podocyte A modified epithelial cell of the capsular epithelium of the renal glomerulus. It has a small perikaryon and a number of primary and secondary foot-like radiating processes (pedicels) that interdigitate with those of other podocytes and embrace the basal lamina of glomerular capillaries. Podocyte Prostatic_Portion_of_the_Male_Urethra Prostatic Urethra Prostatic Portion of the Male Urethra Hair Follicle Isthmus Hair_Follicle_Isthmus Membrane_Part Membrane Part Straight_Artery Straight Artery of the Endometrium Straight Artery Anal_Gland Anal Gland Carotid Artery Carotid_Artery Mitral_Valve Mitral Valve Metatarsal Bone Digit 5 Metatarsal_Bone_Digit_5 Levator_Palpebrae_Superioris Levator Palpebrae Superioris Tibia Tibia Anterior_Wall_of_the_Tympanum Anterior Wall of the Tympanum Prostatic_Duct Prostatic Duct Human Prostatic Duct Thymic_Tissue Thymic Tissue Tissue composed of a highly cellular outer cortex, and less cellular inner medulla. Both cortex and medulla contain epithelial cells, interdigitating dendritic cells, macrophages, and lymphocytes. Hair Follicle Infundibulum Hair_Follicle_Infundibulum Upper_Extremity_Part Upper Extremity Part Salpingopharyngeus Salpingopharyngeus Pancreas_Part Pancreas Part Interlobular_Artery Interlobular Artery Inferior_Parietal_Convolution Inferior Parietal Convolution Scalenus_Dorsalis Scalenus Dorsalis Activated Natural Killer Cell A cell that acts in a similar manner to a cytotoxic T cell. It must be activated like a cytotoxic T cell, but the killing is nonspecific and the cell does not need to recognize antigen/MHC on the target cell. This cell is not a T cell and the lineage of the NK cell is not well understood. Activated_Natural-Killer_Cell Tarsal_Artery Tarsal Artery Basilar_Artery_Branch Basilar Artery Branch Ankle_Joint Ankle Joint Hassall_s_Corpuscle A small spherical body composed of keratinized squamous epithelial cells arranged in a concentric pattern in the medullary portion of the thymus. Virchow-Hassall Body Thymic Corpuscle Hassall's Corpuscle Hassall's Concentric Corpuscle Hassall's Body Right_Suprarenal_Vein Right Suprarenal Vein Bladder Tissue Bladder_Tissue Intercostal_Nerve Intercostal Nerve Stomach_Part Stomach Part Inferior_Profunda_Artery Inferior Profunda Artery Basilar Membrane of the Membranous Canal of the Cochlea The wall of the cochlear duct, which separates it from the scala tympani. It vibrates in response to sound, exciting the hair cells and supports the organ of Corti. Basilar_Membrane_of_the_Membranous_Canal_of_the_Cochlea Tarsal Joint Tarsal_Joint Anterior_Annular_Ligament Anterior Annular Ligament Foot_Digit_1 Foot Digit 1 Urinary_Space Urinary Space Bowman's Space One of numerous oval bodies found in the papillae of the skin, especially those of the fingers and toes; they consist of a connective tissue capsule in which the axon fibrils terminate around and between a pile of wedge-shaped epithelioid cells. SYN corpusculum tactus, oval corpuscle, touch corpuscle. (On-line Medical Dictionary) Tactile Corpuscle Meissner Corpuscle Corpusculum Tactus Meissner_Corpuscle Oval Corpuscle Touch Corpuscle Meissner's Corpuscle Posterior Surface of the Liver Posterior_Surface_of_the_Liver Genitalia Genitalia The external sex organs. Respiratory Muscles Intercostal Muscle Intercostal_Muscle Basilic_Vein Basilic Vein Dorsal Nasal Artery Dorsal_Nasal_Artery Circular Ligament of the Tooth Circular_Ligament_of_the_Tooth Inferior Palpebral Fold Inferior_Palpebral_Fold Hand_Digit_5 Hand Digit 5 Inner_Canthus Inner Canthus Tarsal Plate Tarsal_Plate Urothelial_Cell A cell found in the layer of transitional epithelium in the wall of the bladder, ureter, and renal pelvis, external to the lamina propria. Urothelial Cell A specialized bulblike nerve ending located in the subcutaneous tissue of the skin; occurs abundantly in the skin of palms and soles and joints and genitals. Pacinian Corpuscle Lamellated Corpuscle Vater-Pacini_Corpuscle Vater-Pacini Corpuscle Vater's Corpuscle Corpuscula Lamellosa Inferior_Parathyroid_Gland Inferior Parathyroid Gland Intercostal Fascia Intercostal_Fascia Middle_Colic_Artery Middle Colic Artery Basophilic_Cell A cell whose cytoplasm or granules stain readily with basic dyes. Basophilic Cell Inferior_Pancreatico-duodenal_artery Inferior Pancreatico-Duodenal Artery Hand_Digit_4 Hand Digit 4 Tarsus_Bone Tarsus Bone Stratum Lucidum Clear Layer Stratum_Lucidum Ganglion Neural Ganglion Ganglion Ganglia Rib_6 Rib 6 Tibial Artery Tibial Arteries Tibial_Artery Parathyroid_Gland_Tissue Parathyroid Gland Tissue Parathyroid gland tissue consists of three primary cell types - chief cells, oxyphil cells and clear cells. These glands are usually located in close proximity to the thyroid gland. Breast-Related Entity Breast Part Breast-Related_Entity Merkel's Tactile Cell Tactile Disk Tactile Meniscus Merkel_s_Corpuscle Meniscus Tactus A specialized tactile sensory nerve ending in the epidermis, characterized by a terminal cuplike expansion of an intraepidermal axon in contact with the base of a single modified keratinocyte. SYN meniscus tactus, Merkel's corpuscle, Merkel's tactile cell, Merkel's tactile disk, tactile disk. (On-line Medical Dictionary) Merkel's Corpuscle Stratum_Intermedium Stratum Intermedium Tailor's Muscle Sartorius Muscle Sartorius Sartorius_Muscle Taste_Pore Taste Pore Carina Carina A ridge or ridge-like structure. In humans it usually refers to the trachea. The carina of trachea is part of the lowest tracheal cartilage which is placed between the orifices of the two bronchi. Semispinalis_Capitis Semispinalis Capitis Rib_5 Rib 5 Inferior Oblique Muscle Inferior_Oblique_Muscle Hand Digit 3 Hand_Digit_3 Anastomotica_Magna_Artery Anastomotica Magna Artery Beta_Cell A cell that composes the bulk of the islets of Langerhans and secretes insulin. Insulin Secreting Cell Insulin Cell Beta Cell Fibula Fibula Peritoneal Mesothelial Cell Peritoneal_Mesothelial_Cell Rib_7 Rib 7 Corneoscleral_Limbus Corneoscleral Limbus Corneal Limbus Free Nerve Endings Free Nerve Ending Free nerve endings are widely distributed throughout the body, and are found as branches of unmyelinated, or lightly myelinated fibres grouped in bundles beneath the epithelium. As they penetrate the epithelium, they lose their myelin, and branch among the epithelial cells. Branches of one nerve may cover a wide area and overlap the territories of other nerves. The free nerve endings detect pain, touch, pressure and temperature, and are associated with C fibres. Free_Nerve_Ending Intermediate Fiber Intermediate_Fiber Parietal Layer of Bowman's Capsule Parietal_Layer_of_Bowman_s_Capsule Stratum_Granulosum Stratum Granulosum Granular Layer Tear Tear Other_Anatomic_Concept Other Anatomy Concept Other Anatomic Concept Inferior Occipital Convolution Inferior_Occipital_Convolution Hand_Digit_2 Hand Digit 2 Rib 8 Rib_8 Vocal_Cord Two small bands of muscle within the larynx. They close to prevent food from getting into the lungs, and they vibrate to produce the voice. Vocal Cords Vocal Cord Periurethral Zone of the Prostatic Parenchyma The inner most portion of the prostatic parenchyma surrounding the mid and proximal portions of the prostatic urethra where the ejaculatory ducts enter the urethra. Periurethral_Zone_of_the_Prostatic_Parenchyma Femur Femur Ruffinis_Corpuscle Ruffini's Ending Ruffini's Corpuscle Interlobular Duct Interlobular_Duct Skin Part Skin_Part Sarcolemma Sarcolemma Angular Artery Angular_Artery Sarcoplasm Sarcoplasm Stratum_Disjunctum Stratum Disjunctum Inferior_Mesenteric_Artery_Branch Inferior Mesenteric Artery Branch Hand_Digit_1 Hand Digit 1 Semimembranosus Semimembranosus Vestibular_Nucleus Vestibular Nucleus Vestibular Nuclei Femoral Vein Femoral_Vein Perivitelline Space Perivitelline_Space Heart_Part Heart Part Interlobular Bile Duct Interlobular_Bile_Duct Nociceptor Pain Receptor Nociceptors Nociceptor A free nerve ending that is a receptor for painful stimuli. (Kanner) Ectocervical_Mucosa The mucous covering of the vaginal portion of the cervix. It is composed of epithelium, basement membrane, lamina propria mucosae, and lamina muscularis mucosae. Ectocervical Mucosa Saphenous_Vein Saphenous Vein Angular Gyrus Angular_Gyrus Stratum Corneum Horny Layer Stratum_Corneum Inferior Mesenteric Vein Inferior_Mesenteric_Vein Scalenus_Medius Scalenus Medius Vestibular_Nerve Vestibular Root of Eighth Cranial Nerve Vestibular Nerve (VIII) Vestibular Nerve Cardiac_Nerve_Plexus Cardiac Nerve Plexus Bicuspid_Tooth One of the two permanent teeth located in front of the molars and behind each cuspid. These teeth have two cusps (points) and are used to tear and grind food. Premolar Tooth Premolar Bicuspid Tooth Infraclavicular_Region The region below the clavicle. Infraclavicular Region Infraclavicular Peripheral_Nerve_Sheath The protective covering surrounding the axon of neurons in the peripheral nervous system. Peripheral Nerve Sheath Eustachian_Tube Tuba Auditoria Pharyngotympanic Tube Eustachian Tube Auditory Tube A tubular structure that runs from the middle ear to the nasopharynx and is approximately 3-4 cm length. Its lumen is roughly triangular and has average diameter of 2-3 mm. The lumen is lined by ciliated pseudostratified, columnar epithelium, which sweeps material from the middle ear to the nasopharynx. functionally collapsed at rest, with slight negative pressure present in the middle ear. It is closed at rest and opens during swallowing, sneezing, and yawning. It serves to ventilate pressure differences between the middle ear and nasopharynx. This tube also allows middle ear secretions to drain into the nasopharynx. Sebaceous Gland Sebaceous_Gland Vagal Triangle Vagal_Triangle Stratum_Conjunctum Stratum Conjunctum Nasolacrimal Duct Nasolacrimal_Duct External_Plantar_Artery External Plantar Artery Pigment_Epithelium Pigmented Epithelium Pigment Epithelium Tissue consisting of one or more layers of epithelial cells and a basement membrane. The cells contain granules of pigment or melanin, as in the retinal or iris pigment layer. Fourth_Ventricle_of_the_Brain Fourth Ventricle of the Brain Fourth Ventricle of Brain Fourth Ventricle Subcostal_Artery Subcostal Artery Femoral_Artery Femoral Artery Biceps Biceps Brachii Muscle Biceps Hypogastric Nerve Plexus Hypogastric_Nerve_Plexus Breast Breasts Breast One of two hemispheric projections of variable size situated in the subcutaneous layer over the pectoralis major muscle on either side of the chest. Hilar Portion of the Hepatic Duct Hilar_Portion_of_the_Hepatic_Duct Sciatic Artery Sciatic_Artery Stratum Basale Basal Layer Stratum_Basale Vaginal_Fornix Vaginal Fornix Stratified Epithelium Stratified_Epithelium Navicular Bone Navicular_Bone External Parieto-Occipital Fissure External_Parieto-occipital_Fissure Third_Ventricle_of_Brain Ventricle, Third Third Ventricle of Brain Third Ventricle Third Cerebral Ventricle A centrally placed component of the ventricular system of the brain located in the diencephalon. Cerebrospinal fluid from the lateral ventricles flows into the third ventricle via the foramina of Monroe and exits the third ventricle via the aqueduct of Sylvius. The thalamus and hypothalamus border the lateral walls of the third ventricle. Simple Squamous Epithelium Epithelium composed of a single layer of flat cells wider than they are tall. This epithelium is found in anatomic sites where exchange of nutrients, wastes and gases occur. Simple_Squamous_Epithelium Seventh Cranial Nerve Facial Nerve The 7th cranial nerve. The facial nerve has two parts, the larger motor root which may be called the facial nerve proper, and the smaller intermediate or sensory root. Together they provide efferent innervation to the muscles of facial expression and to the lacrimal and salivary glands, and convey afferent information for taste from the anterior two-thirds of the tongue and for touch from the external ear. (MeSH) Facial_Nerve Pontine_Base Pontine Base Basis Pontis Base of Pons Anus anus anal Anus Anal The lower opening of the digestive tract, lying in the cleft between the buttocks, through which fecal matter is extruded. Celiac Ganglion Coeliac_Ganglion Bile_Salt Bile Salt Cardiac_Valve_Cusp Cardiac Valve Cusp Scalene Muscle Scalene_Muscle Stratified_Cuboidal_Epithelium Stratified Cuboidal Epithelium Epithelium consisting of multiple layers of cells in which the top layer of cells are box-shaped. It is commonly found in large gland ducts such as sweat gland ducts. Palpebra Eyelid Eyelid Sublingual_Artery Sublingual Artery Psoas Major Psoas Magnus Musculus Psoas Major Psoas_Major A sheet of amorphous extracellular material upon which the basal surfaces of epithelial cells rest. It is made up of two layers, the basal lamina and the reticular lamina. It is also associated with muscle cells, Schwann cells, fat cells, and capillaries; and is interposed between the cellular elements and the underlying connective tissue. Basilar Membrane Basilar_Membrane Posterior_Tibial_Artery Posterior Tibial Artery Bile_Canaliculus Bile Canaliculus Ethmoid Bone Ethmoid_Bone An elongated cell that is closely associated with a muscle fiber; it either is flattened against the fiber or occupies shallow depressions in its surface. Satellite Cell Satellite_Cell Chief_Cell Chief Cells Chief Cell Epithelial cells that line the basal half of the gastric glands. They synthesize and secrete pepsinogen, a precursor of the enzyme pepsin. (MeSH) Mature_Activated_Gamma_Delta_T-Lymphocyte Activated Mature Gamma/Delta T-Lymphocyte with a Cytotoxic Phenotype A mature lymphocyte whose T cell receptor, a gamma polypeptide chain linked by a disulfide bridge to a delta polypeptide chain, has recognized specific foreign antigens and self MHC antigens. This type of cell is most often found in the gut and epidermis. Nasal Septum Nasal_Septum Stratified Columnar Epithelium Epithelium consisting of multiple layers of cells in which the top layer of cells are taller than they are wide. This epithelium is found in salivary gland ducts. Stratified_Columnar_Epithelium Exocrine_Gland A gland from which secretions reach a free surface of the body by ducts. Exocrine Gland Anterior Tibial Artery Anterior_Tibial_Artery Psoas Parvus Psoas Minor Musculus Psoas Minor Psoas_Minor Utero-Vesical_Pouch Utero-Vesical Pouch fallopian tubes Fallopian Tubes Fallopian Tube Fallopian_Tube Superficial Cervical Artery Superficial_Cervical_Artery Splenic_Trabecular_Artery Splenic Trabecular Artery Spleen Trabecular Artery epithelium Epithelium Epithelium Anal_Margin Perianal Skin Anal Margin External Maleolus External_Maleolus Bladder_Muscular_Coat Bladder Muscular Coat Hematopoietic_and_Lymphoid_Tissue Hematopoietic and Lymphoid Tissue ovaries Ovary Ovaries Genital System, Female, Ovary One of the paired female reproductive glands containing the ova or germ cells; the ovary's stroma is a vascular connective tissue containing numbers of ovarian follicles enclosing the ova; surrounding this stroma is a more condensed layer of stroma called the tunica albuginea. Ovary Uterine_Gland Uterine Gland Utricle Utricle Organ System, Female Reproductive Reproductive System, Female Female Reproductive System Organ System, Gynecologic Body System, Reproductive, Female Female Reproductive Body System Genital System, Female Female_Reproductive_System Gynecologic Body System Body System, Gynecologic Gynecologic Organ System Female Reproductive Organ System Semispinalis_Thoracis Semispinalis Thoracis External_Lateral_Ligament_of_the_Ankle Lateral Collateral Ligament of the Ankle Lateral Collateral Ligament of Ankle External Lateral Ligament of the Ankle External Lateral Ligament of Ankle Ankle Lateral Collateral Ligament Bladder_Mucosa Bladder Mucosa T8_Vertebra T8 Vertebra T-Immunoblast A T-lymphocyte that has been transformed (activated) in response to antigenic stimulation. It will give rise to a population of T cells with specificity against the stimulating antigen. T-Immunoblast The organ of sight or vision. (On-line Medical Dictionary) Eyeball Eye Eye Utriculosaccular_Duct Utriculosaccular Duct Radial_Artery_of_the_Upper_Extremity Radial Artery of the Upper Extremity External_Nose Nasus Externus External Nose Serratus_Dorsalis_Caudalis Serratus Dorsalis Caudalis Bladder_Serosal_Surface Bladder Serosal Surface External_Oblique_Muscle External Oblique Muscle Descending Oblique Muscle T9 Vertebra T9_Vertebra Hematopoietic and Lymphatic System Part Hematopoietic_and_Lymphatic_System_Part Thyroid Gland Thyroid gland Head and Neck, Thyroid thyroid gland thyroid Thyroid Thyroid_Gland Tail_of_the_Spermatozoon Tail of the Spermatozoon Radial Artery of the Endometrium Radial_Artery_of_the_Endometrium External Malleolar Artery External_Malleolar_Artery Bladder Muscularis Mucosa Bladder_Muscularis_Mucosa Anterior Cerebral Artery Anterior Cerebral Arteries ACA Anterior_Cerebral_Artery Tail of the Epididymis Tail_of_the_Epididymis Right Subclavian Artery Right_Subclavian_Artery Allogeneic_Lymphocyte A cell that is antigenically distinct from other lymphocytes. Lymphocytes, Allogeneic Allogeneic Lymphocyte Eosinophil_Precursor_Cell Eosinophil Precursor Cell Tumor-Associated_Vasculature New blood vessels formed by solid tumors. Tumor-Associated Vasculature Neovasculature Cells in the interstitial tissue of the testis that are believed to furnish the internal secretion of that gland. (MeSH) Interstitial Cell Leydig Cell Interstitial cell of Leydig Interstitial Cell of Testis Interstitial Cell of Leydig Leydig_Cell Leydig Cells Interstitial Cell of the Testis serum albumin Serum Albumin Serum_Albumin Lentiform Nucleus Lentiform_Nucleus Transitional_Epithelium Stratified epithelium that changes shape from cuboidal to squamous when stretched without losing strength or consistency. This type of epithelium is found in the urinary tract. Transitional Epithelium The lamellated connective tissue constituting the thickest layer of the cornea between the Bowman and Descemet membranes. (MeSH) Corneal Stroma Corneal_Stroma Goblet_Cell Goblet Cells Goblet Cell Cells of the epithelial lining that produce and secrete mucins. (MeSH) Nerve_Sheaths Protective covers encircling nerves, nerve fibers or axons. Nerve Sheaths The third layer of the cerebral cortex, composed of an inner zone of medium sized pyramid-shaped cells with a single apical dendrite extending outward toward the surface and several dendrites extending inward and an outer zone of larger pyramid shaped cells whose dendrites and axons extend beyond this layer. Outer Pyramidal Cell Layer Medium Pyramidal Cell Layer External Pyramidal Cell Layer of the Cerebral Cortex External Pyramidal Cell Layer External_Pyramidal_Cell_Layer B-Immunoblast A B-lymphocyte that has been transformed (activated) in response to antigenic stimulation. B-Immunoblast Lacrimal_Gland Lacrimal Gland The mucous lining of the canal of the cervix uteri. It is composed of epithelium, basement membrane, lamina propria mucosae, and lamina muscularis mucosae. Endocervical Mucosa Endocervical_Mucosa Right Thyroid Gland Lobe Right_Thyroid_Gland_Lobe Descending_Spinal_Cord_Tract Descending Spinal Tracts Descending Spinal Cord Tracts Descending Spinal Cord Tract Leptomeninges Leptomeninges The two innermost layers of tissue that cover the brain and spinal cord, the arachnoid mater and the pia mater. Splenic_Trabecular_Vein Splenic Trabecular Vein Spleen Trabecular Vein common bile duct Ductus Communis Choledochus Common Bile Duct Bile ducts are passageways that carry bile. Two major bile ducts come together into a 'trunk'-the common bile duct which empties into the upper part of the small intestine (the part next to the stomach). Common_Bile_Duct gland Gland Gland Protoplasmic_Astrocyte Protoplasmic Astrocyte Immunoblast An antigenically stimulated lymphocyte. It is a large cell with well-defined cytoplasm, a large nucleus with prominent nuclear membrane, distinct nucleoli, and clumped chromatin. Immunoblast Gingival_Epithelium Gingival Epithelium Terminally differentiated cells comprising the majority of the external surface of the intestinal epithelium. Unlike goblet cells, they do not produce or secrete mucins, nor do they secrete cryptdins as do the paneth cells. (MeSH) Enterocytes Enterocyte Enterocyte Extraglomerular Mesangial Cell Extraglomerular_Mesangial_Cell Ciliary_Body Ciliary Body Lens Fiber Lens_Fiber Extrahepatic Bile Duct Extrahepatic_Bile_Duct Hilar Portion of the Left Hepatic Duct Hilar_Portion_of_the_Left_Hepatic_Duct Splenic_Marginal_Sinus Splenic Marginal Sinus Spleen Marginal Sinus Cymba_Conchae Cymba Conchae A parenchymal liver cell. Hepatocytes Hepatic Parenchymal Cell Hepatocyte Liver Cells hepatocyte Hepatocyte Hepatic Cells Choroid Choroid Quadrangular Lobule of the Cerebellum Lobus Quadratus Lobus_Quadratus Lateral Wall of the Oropharynx Lateral Wall of Oropharynx Lateral_Wall_of_the_Oropharynx Islet of Langerhans Pars endocrina pancreatis Islets of Langerhans Pancreatic Islets Islet_of_Langerhans Islet Cells Islands of Langerhans Pancreas, Endocrine Nesidioblasts islets of Langerhans B9 ENDOCRINE PANCREAS Langerhans Islets Ascending Tracts of Spinal Cord Ascending Spinal Tracts Ascending Spinal Cord Tracts Ascending Spinal Cord Tract Ascending_Spinal_Cord_Tract Nucleus Lenticularis Lenticular Nucleus Lenticular_Nucleus Organ_Capsule Organ Capsule Cells of the membrana granulosa lining the vesicular ovarian follicle which become luteal cells after ovulation. (MeSH) Granulosa Cells Granulosa Cell Granulosa_Cell Cystic Duct Cystic_Duct Follicles A tube-like invagination of the epidermis from which the hair shaft develops and into which the sebaceous glands open; the follicle is lined by a cellular inner and outer root sheath of epidermal origin and is invested with a fibrous sheath derived from the dermis. follicle hair follicles Hair_Follicle Hair Follicles Hair Follicle Eye_Appendage Eye Appendage Proximal Convoluted Tube Proximal_Convoluted_Tube Hilar Portion of the Right Hepatic Duct Hilar_Portion_of_the_Right_Hepatic_Duct Retina The light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve. Retina Lobus_Caudatus Lobus Caudatus Caudal Lobe of the Cerebellum Anterior Surface of the Epiglottis Anterior Surface of Epiglottis Anterior_Surface_of_the_Epiglottis Roof_of_the_Fourth_Ventricle Roof of the Fourth Ventricle Cilium Cilium Leg Leg Retina Proper Neural Retina A layer of nerve cells in the retina. Embryologically, it is part of the brain. Incoming light passes through nerve-fibres and intermediary nerve cells of the neural retina, before encountering the light-sensitive rods and cones at the interface between neural retina and the pigmented retinal epithelium. Neural_Retina Postero-Lateral Fissure of the Spinal Cord Postero-lateral_Fissure Liver Fissure Liver_Fissure Zone 3 of the Lliver Acinus Zone 3 of Lliver Acinus Zone 3 Liver Acinus Zone 3 Liver_Acinus_Zone_3 cornea Cornea The transparent anterior portion of the fibrous coat of the eye consisting of five layers: stratified squamous epithelium, Bowman's membrane, stroma, Descemet's membrane, and mesenchymal endothelium. It serves as the first refracting medium of the eye. It is structurally continuous with the sclera, is avascular, receiving its nourishment by permeation through spaces between the lamellae, and is innervated by the ophthalmic division of the trigeminal nerve via the ciliary nerves and those of the surrounding conjunctiva which together form plexuses. Cornea Cystic_Vein Cystic Vein Fourth Portion of the Duodenum Fourth Portion of Duodenum Ascending Portion of the Duodenum Ascending Portion of Duodenum Fourth_Portion_of_the_Duodenum Gut_Epithelium The epithelium that lines the gastrointestinal tract. Gut Epithelium Left_Thyroid_Gland_Lobe Left Thyroid Gland Lobe Lens Capsule Lens_Capsule Root of the Nail Root_of_the_Nail All Sites Anything relevant to all anatomic sites - non-specific. All_Sites Nervi_Vascularis Nervi Vascularis Liver_Ligament Liver Ligament Conjunctiva A thin, transparent mucous membrane that covers the posterior surface of lids (palpebral conjunctiva) and the outer surface of the sclera (bulbar conjunctiva). conjunctiva Conjunctiva Scapha Fossa of the Helix Fossa of Helix Fossa_of_the_Helix Connective and Soft Tissue Connective And Soft Tissue Connective_and_Soft_Tissue Neck_of_the_Humerus Neck of the Humerus Decidua Decidua Graviditas Decidua Rostrum of the Corpus Callosum Rostrum_of_the_Corpus_Callosum Lobar_Bronchus Secondary Bronchus Lobar Bronchus Dendritic clear cells in the epidermis, containing distinctive granules that appear rod- or racket-shaped in section, but lacking tonofilaments, melanosomes, and desmosomes; they carry surface receptors for immunoglobulin (Fc) and complement (C3), and are believed to be antigen fixing and processing cells of monocytic origin; active participants in cutaneous delayed hypersensitivity. Non-Neoplastic Langerhans Cell Langerhans Cells Langerhans Cell Langerhans_Cell Trachea_and_Bronchus Trachea -The cartilaginous and membranous tube descending from the larynx and branching into the right and left main bronchi. Bronchi-The larger air passages of the lungs arising from the terminal bifurcation of the trachea. Trachea, Bronchus Trachea and Bronchus Respiratory System, Trachea, Bronchus Left Pulmonary Artery Left_Pulmonary_Artery Tissue composed of tubuloalveolar glands embedded in fibromuscular stroma. The stroma is smooth muscle separated by strands of connective tissue rich in collagenous and elastic fibers. The secretory alveoli of the prostate are irregularly shaped with papillary projections of the mucosa into the lumen of the gland. Prostatic Tissue Prostatic Parenchyma Prostatic_Tissue Bladder_Transitional_Cell Bladder Urothelial Cell Bladder Transitional Cell An epithelial cell, found in the bladder, originally thought to represent a transitional form between stratified squamous and columnar epithelial cells. In the contracted condition the epithelium consists of many cell layers, whereas in the stretched condition usually only two layers of cells can be distinguished. Rotator_Cuff Rotator Cuff Neck Muscle Neck_Muscle Lobule of the Auricle Lobule_of_the_Auricle External Pterygoid Muscle External_Pterygoid_Muscle dendritic cell Veiled Cells Dendritic Cells Dendritic Cell Dendritic Cells are immunocompetent cells of the lymphoid and hemopoietic systems and skin. They function morphologically and phenotypically by presenting or processing antigens, thereby stimulating cellular immunity. They represent the most potent antigen-presenting cells and, therefore, play a critical role in the primary T cell immune response. Dendritic_Cell Left_Subclavian_Artery Left Subclavian Artery Bladder Urothelium Bladder Transitional Epithelium Bladder Transitional Cell Epithelium Bladder_Transitional_Cell_Epithelium Chromophobe_Cell Chromophobe Cell A small, faintly staining cell with scanty cytoplasm and rounded or polygonal contours. It is found in clusters in the anterior lobe of the pituitary gland. Inferior_Temporal_Gyrus Inferior Temporal Gyrus The primitive differentiated female gamete which gives rise to an oocyte. (MeSH) Primordial ovum Primary oocyte Primary Oocyte Oogonium Oogonia Primary_Oocyte Anal Squamous Zone Anal_Squamous_Zone Rib_2 Rib 2 Superior_Vesical_Artery Superior Vesical Artery Cerebral Artery Cerebral Arteries Cerebral_Artery A fat storing cell. Lipocyte Lipocyte Submental Vein Submental_Vein Fourth_Ventricle_Ependyma Fourth Ventricle Ependyma Submandibular_Gland One of two salivary glands in the neck, located in the space bound by the two bellies of the digastric muscle and the angle of the mandible. It discharges through the submandibular duct. (MeSH) Submaxillary Gland Submandibular Gland Membranous_Canal_of_the_Cochlea Membranous Canal of the Cochlea Prostatic_Glandular_Tissue Prostatic Glandular Tissue Human Prostatic Glandular Tissue A simple epithelial cell that is shaped like a short column. Low Columnar Cell Low_Columnar_Cell Posterior_Tibial_Artery_Branch Posterior Tibial Artery Branch Inferior Vesical Artery Inferior_Vesical_Artery Frontal Gyrus Frontal_Gyrus Parieto-Occipital Fissure Parieto-occipital_Fissure Decidua_Capsularis Decidua Capsularis S1 Vertebra S1_Vertebra Ciliary_Epithelium Ciliary Epithelium A layer of connective tissue surrounding bundles of nerve fibers. It is formed by flattened cells that have a basement membrane on each side. Perineurium Perineurium Inferior Temporal Convolution Inferior_Temporal_Convolution Anterior_Olfactory_Lobule Anterior Olfactory Lobule Anal_Sinus Anal Sinus Rib 12 Rib_12 Left_Portion_of_the_Diaphragm Left Portion of the Diaphragm Cavernous_Sinus Cavernous Sinus Loop of Henle Henle's Loop Loop_of_Henle Uvula Uvula Suprarenal Vein Suprarenal_Vein Liver_Acinus Liver Acinus The smallest functional unit of the liver, comprising all of the liver parenchyma supplied by a terminal branch of the portal vein and hepatic artery; typically involves segments of two lobules lying between two terminal hepatic venules. Mucosal_Tissue_of_Human_Prostate Mucosal Tissue of Human Prostate Irregular connective tissue, the intercellular matrix of which contains a sparse irregular network of collagen and elastic fiber bundles. Loose Connective Tissue Areolar Tissue Loose_Connective_Tissue Posterior Tibial Vein Posterior_Tibial_Vein Decidua_Parietalis Decidua Parietalis Spermatozoa Spermatozoon Sperm zoosperm The male reproductive cell that is formed in the testicle. A sperm consists of a head, a body, and a tail that provides propulsion. sperm Spermatozoon S2 Vertebra S2_Vertebra Ciliary_Muscle Ciliary Muscle Parieto-Occipital Artery Parieto-occipital_Artery Frontal Bone Frontal_Bone Perineum Perineum Rib_4 Rib 4 Anterior Parietal Artery Anterior_Parietal_Artery Cervical Vertebrae Cervical Vertebra Cervical_Vertebra A cell of the loose cellular inner layer of the periosteal tissue in the intramembranous ossification of bone Periosteal Cell Periosteal_Cell Cerebral White Matter Cerebral_White_Matter Inferior Rectus Muscle Inferior_Rectus_Muscle Zone 1 of the Lliver Acinus Zone 1 of Lliver Acinus Zone 1 Liver Acinus Zone 1 Liver_Acinus_Zone_1 A movable fold suspended from the posterior border of the hard palate. (MeSH) Soft Palate Soft_Palate Regional_Lymph_Node A lymph node that drains lymph from a region of interest. regional lymph node Regional Lymph Node Basaloid_Cell Basaloid Cell A cell usually of the epidermis that resembles a basal cell. Left Subcostal Vein Left_Subcostal_Vein Orifice_of_Human_Prostatic_Duct Orifice of Human Prostatic Duct The outermost of the two pleural membranes. It consists of a thin basal layer of fibrous tissue upon which sits a continuous layer of mesothelial cells. The cells function to secrete the lubricant lining the pleural cavity. Parietal Pleura Parietal_Pleura Ciliary_Process Ciliary Process Decidual Cell An endometrial fibroblast that differentiates during pregnancy in response to the implanting embryo by accumulating lipid and glycogen. It is polygonal, possesses a large, vesicular nucleus and is believed to secrete placental prolactin. The decidual cells form a tightly adherent, massive cellular matrix that first surrounds the implanting embryo and later occupies most of the endometrium. Decidual_Cell Posterior_Ulnar_Vein Posterior Ulnar Vein Rib_3 Rib 3 Anterior_Part_of_the_Calcarine_Fissure Anterior Part of the Calcarine Fissure Anal_Transitional_Zone Anal Transitional Zone Brain_Nucleus Brain Nucleus The anteriorly located rigid section of the palate. (MeSH) Hard Palate Hard_Palate Foveolar_Cell Foveolar Cell An epithelial cell found in the glands of the gastric mucosa. Periodontium Periodontal Membrane Periodontal Ligament The fibrous connective tissue surrounding the root of a tooth that separates it from and attaches it to the alveolar bone. Periodontium Zone 2 of the Lliver Acinus Zone 2 of Lliver Acinus Zone 2 Liver Acinus Zone 2 Liver_Acinus_Zone_2 The fluid that is contained within the brain ventricles, the subarachnoid space and the central canal of the spinal cord. cerebrospinal fluid Cerebrospinal Fluid CSF Cerebrospinal_Fluid Right_Pulmonary_Vein Right Pulmonary Vein Lower Esophageal Sphincter LES Lower_Esophageal_Sphincter Parietal_Part_of_the_Peritoneum Parietal Part of the Peritoneum Submucosal Tissue of Human Prostate Submucosal_Tissue_of_Human_Prostate Free_Edge_of_the_Nail Free Edge of the Nail Ciliated_Bronchial_Epithelial_Cell A columnar-shaped cell found in the epithelium of the lobular bronchiole. Each cell contains 200-300 cilia 5-8 mm long. The cilia are part of the mucociliary system, which extends through the tracheobronchial tree and into the respiratory bronchioles. This system protects the respiratory surface from dirt and airborne infection and represents the principal mechanism of defense in the respiratory tract. The cilia beat in unison (about 1,000 strokes per minute) and in a wave-like fashion, thereby propelling mucus and entrapped foreign material toward the oropharynx for expectoration or swallowing. Ciliated Bronchial Epithelial Cell Posterior Wall of the Tympanum Posterior_Wall_of_the_Tympanum Vallecula Vallecula Long Bone Long_Bone Base_of_the_Lung Base of the Lung clavicle Collar Bone Clavicle Clavicle Pars Externa Pars_Externa Endocrine System Part Endocrine_System_Part Intercostal_Artery Intercostal Artery Spermatocyte Male germ cells derived from spermatogonia and developing into spermatids. (MeSH) Spermiocytes Spermatocytes Spermatocyte Right_Subcostal_Vein Right Subcostal Vein Base_of_the_Brain Base of the Brain Base of Brain Tonsillar Pillar Tonsillar_Pillar Perivascular_Epithelioid_Cell Perivascular Epithelioid Cell PEC A perivascular cell with abundant clear or eosinophilic cytoplasm that contains glycogen. -- 2005 Lobus_Spigelii Lobus Spigelii Choroidal_Artery Choroidal Artery Periosteal Layer of the Dura Mater Periosteal_Layer_of_the_Dura_Mater T-LGL T-Cell Large Granular Lymphocyte A thymus-dependent white blood cell that has been activated by contact with antigen and has enlarged by macromolecular synthesis with presence of large granules visible by light microscopy. T-Cell_Large_Granular_Lymphocyte Keratinocytes Keratinocyte Keratinocyte Epidermal cells which synthesize keratin and undergo characteristic changes as they move upward from the basal layers of the epidermis to the cornified (horny) layer of the skin. Successive stages of differentiation of the keratinocytes forming the epidermal layers are basal cell, spinous or prickle cell, and the granular cell. Pseudostratified_Epithelium Pseudostratified Epithelium Choroid Plexus Choroid_Plexus Dorsal_Metatarsal_Vein Dorsal Metatarsal Vein Spermatogonias spermatospore Spermatogonium Spermatogonium spermigonium Spermatogonia Spermatophores spermospore spermatogone The primitive differentiated male gamete which gives rise to a spermatocyte. (MeSH) Frontal_Sulcus Frontal Sulcus Intercostal Artery Branch Intercostal_Artery_Branch Parotid_Gland_Lymph_Node Parotid Gland Lymph Node Dorsal_Metacarpal_Artery Dorsal Metacarpal Artery Posterior Surface of the Stomach Posterior_Surface_of_the_Stomach Longitudinal Fissure of the Cerebrum Longitudinal Fissure Longitudinal_Fissure meninges Meninges Meninges Tonsillar Fossa Tonsillar_Fossa Thoracic Ganglion Thoracic_Ganglion Choroid_Plexus_Epithelium_of_the_Fourth_Ventricle Choroid Plexus Epithelium of the Fourth Ventricle Cutaneous_Trunci Cutaneous Trunci Medial_Femoral_Vein Medial Femoral Vein The area between hepatocytes and the epithelium lining the sinusoids of the liver. The space contains reticular fibers and microvilli from the hepatocytes. Proteins produced by the hepatocytes are transferred to the blood via the perisinusoidal space as blood fluids easily move through the epithelium and microvilli. Space of Disse Perisinusoidal Space Perisinusoidal_Space Rib_11 Rib 11 Cochlear Root of Eighth Cranial Nerve Cochlear Root of Acoustic Nerve Cochlear Nerve Cochlear_Nerve Choroidal_Fissure Choroidal Fissure Thyroid_Gland_Epithelial_Tissue Thyroid Gland Epithelial Tissue Sperm Head Head of the Spermatozoon The anterior, usually ovoid, nucleus-containing part of spermatozoa. (MeSH) Head_of_the_Spermatozoon Parotid_Duct Stensen's Duct Parotid Duct Frontal Nerve Frontal_Nerve Cerebral Meninges Cerebral_Meninges The membranes that envelop and protect the brain. Subcostal_Vein Subcostal Vein Posterior Surface of the Vagina Posterior_Surface_of_the_Vagina Stratified_Squamous_Epithelium Epithelium consisting of multiple layers of cells that are flattened and more cuboidal toward the base. Its function is protection. Outer layers may be dead and hardened (keratinized) such as with skin or on top of wet, mucous surfaces such as the cornea Stratified Squamous Epithelium Base_of_the_Pericardium Base of the Pericardium Sublingual Salivary Gland Sublingual Gland Sublingual_Salivary_Gland A connective tissue cell that develops into a fat cell. Lipoblast Lipoblast The bony cavity of the skull which contains the eye, anterior portion of the optic nerve, ocular muscles and ocular adnexa. Seven bones contribute to the structure of the orbit: the frontal, maxillary, zygomatic, sphenoid, lacrimal, ethmoid, and palatine bones. Eye Socket Orbit Orbital Cavity Orbit Ocular Orbit Long Saphenous Vein Great Saphenous Vein Long_Saphenous_Vein Anterior Facial Vein Anterior_Facial_Vein Peripheral Zone of the Prostatic Parenchyma Prostatic parenchyma that occupies the posterior and lateral aspects of the prostate gland. The glandular architecture consists of small, round acini amid loosely woven, randomly oriented stroma. The peripheral zone contains large, so-called main glands, whose ducts run posteriorly to open into the urethra. Approximately 70% of the prostate gland lies in the peripheral zone. Peripheral_Zone_of_the_Prostatic_Parenchyma Coccyx Coccyx Vestibular Membrane Membrane of Reissner A thin layer of tissue that forms the anterior wall of the cochlear duct, which separates it from the vestibular canal. Vestibular_Membrane Rib_10 Rib 10 Parieto-Occipital Sulcus Parieto-occipital_Sulcus Spermatid spermoblast spermid Spermatoblasts Spermatids Spermatid Male germ cells derived from spermatocytes and developing into spermatozoa. (MeSH) Frontal Horn of the Lateral Ventricle Frontal_Horn_of_the_Lateral_Ventricle Intercalated Duct Intercalated_Duct Posterior Temporal Artery Posterior_Temporal_Artery A portion of an organ, such as the liver, lung, breast, or brain. lobe Lobe Lobe Subsegmental_Lymph_Node Subsegmental Lymph Node Station Subsegmental Lymph Node The lymph nodes around the subsegmental bronchi. Fossa of the Antihelix Fossa of Antihelix Fossa Triangularis Fossa_of_the_Antihelix Median_Artery Median Artery Internal Carotid Artery Internal_Carotid_Artery A cell derived from a myeloid progenitor cell. It differentiates into a promonocyte. It is about 12 to 20 micrometer in diameter, has a round to oval nucleus with fine, lightly dispersed chromatin and one to four nucleoli. The cytoplasm is agranular, stains moderately to lightly basophilic, and often has an intensely stained periphery and a prominent perinuclear zone. Monoblasts are found in bone marrow and never appear in the normal peripheral blood. Monoblast Monoblast Vasa_Vasorum Vasa Vasorum Precentral_Artery Precentral Artery Sebaceous_Gland_Duct Sebaceous Gland Duct Tensor_Tympani Tensor Tympani Basal_Domain_of_the_Epithelium Basal Domain of the Epithelium Coccygeal_Muscle Coccygeal Muscle Inferior External Articular Artery Inferior_External_Articular_Artery Myeloblast An immature cell that represents the first stage in the granulocytic series of hematopoiesis. It is found in bone marrow and differentiates into a promyelocyte. Its nucleus is composed of very fine, evenly distributed chromatin with 2-5 nucleoli. The cytoplasm is basophilic and non-granular. Myeloblast Internal_Calcanean_Artery Internal Calcanean Artery Vascular_Smooth_Muscle_Tissue Vascular Smooth Muscle Tissue Smooth muscle tissue found in the tunica media of blood vessels. It controls the diameter of blood vessels. Vascular smooth muscle tissue is autonomous and is in a partial state of contraction at all times. Pre-B Lymphocyte Pre-B_Lymphocyte Tentorium Cerebelli Tentorium_Cerebelli Left_Lung_Alveolar_Duct Left Lung Alveolar Duct Vascular_System Vascular System Basal_Lamina Lamina Densa Basal Lamina Inferior Frontal Convolution Inferior_Frontal_Convolution Vertebral_Joint Vertebral Joint Joint of the Vertebra Anterior_Surface_of_the_Liver Anterior Surface of the Liver Internal Cerebral Vein Internal_Cerebral_Vein Lymphoid_Blood-Forming_Cell Lymphoid Blood-Forming Cells Lymphoid Blood-Forming Cell A lymphoid blood-forming cell is a hematopoietic stem cell that is a precursor for a T lymphocyte or B lymphocyte. Inferior Frontal Sulcus Inferior_Frontal_Sulcus Second_Portion_of_the_Duodenum Second Portion of the Duodenum Second Portion of Duodenum Descending Portion of the Duodenum Descending Portion of Duodenum Valve of Kerckring Circular Fold Valve_of_Kerckring Bladder_Lamina_Propria Bladder Lamina Propria Temporo-maxillary_Vein Temporo-Maxillary Vein Retromandibular Vein Lumbar_Sympathetic_Nerve_Trunk Lumbar Sympathetic Nerve Trunk Inferior_Frontal_Gyrus Inferior Frontal Gyrus Hind-Brain Hind-Brain Posterior_Cerebral_Artery Posterior Cerebral Artery Posterior Cerebral Arteries PCA The posterior cerebral artery is formed by the bifurcation of the basilar artery; it divides into three branches. Purkinje_Cell_Layer_of_the_Cerebellum Purkinje's Cell Layer of the Cerebellum Purkinje Cell Layer of the Cerebellum Mental Artery Mental_Artery Lymphoblast An immature lymphocyte that has enlarged in response to antigenic stimulation. Lymphoblast Omohyoid Omohyoid Internal Carotid Artery Branch Internal_Carotid_Artery_Branch Inferior_Hypophyseal_Artery Inferior Hypophyseal Artery Anterior_Surface_of_the_Lens Anterior Surface of the Lens Sebaceous Gland of the Eyelash Sebaceous Gland of Eyelash Gland of Zeis Sebaceous_Gland_of_the_Eyelash Valve_of_Vieussens Valve of Vieussens Tendinocyte Tendinocyte An elongated cell with invisible cytoplasm and flattened, poorly-stained, nucleus. It is found in the tendon and is positioned in a very regular pattern of rows between parallel bundles of collagen fibers. It makes up the fibers and ground substance of the tendon. Basal_Cerebral_Vein_of_the_Rosenthal Basal Cerebral Vein of Rosenthal Bladder_Wall Bladder Wall Joint_of_the_Rib Rib Joint Joint of the Rib Thoracic_Sympathetic_Nerve_Trunk Thoracic Sympathetic Nerve Trunk Middle Cerebral Artery Middle Cerebral Arteries MCA Middle_Cerebral_Artery Internal Granular Layer of the Cerebellum Inner Granular Layer of the Cerebellum Internal_Granular_Layer_of_the_Cerebellum Omotransverse Omotransverse Mature Tissue Histiocyte A macrophage found in connective tissue. It is part of the reticuloendothelial system. The primary function of a mature tissue histiocyte is to phagocytose and digest tissue fragments especially apoptotic bodies and those fragments resulting from tissue injury and death. Mature_Tissue_Histiocyte Small, flat, granular glands embedded in the submucous areolar tissue of the duodenum. (MeSH) Brunner's Glands Brunner's Gland Brunner_s_Gland Pars Interna of the External Acoustic Meatus Pars Interna Pars_Interna Lateral Ventricle Ventricles, Lateral Lateral Ventricle of Brain The rostral extensions of the ventricular system of the brain consisting of two cavities, one on each side of the brain within the central regions of each cerebral hemisphere. Cerebrospinal fluid flows from the lateral ventricles into the centrally third ventricle via the foramen of Monroe. Lateral Ventricles Ventricle, Lateral Lateral_Ventricle Olfactory Epithelium An epithelium located in the roof, superior conchae, and septum of the nasal cavity. It is formed by ciliated olfactory receptor cells, supporting cells and basal cells. Olfactory glands in the epithelium produce and secrete mucus which forms a layer over the epithelium. The cilia of the receptor cells protrude into the mucous layer where molecular reception with odors occurs and sensory transduction begins. Olfactory_Epithelium Anterior_Surface_of_the_Kidney Anterior Surface of the Kidney Cardiac_Valve Valve Cardiac Valves Cardiac Valve Body_Fluid_or_Substance fluids Fluids Body Fluids or Substances Body Fluids and Substances Body Fluid or Substance Liquid and semi liquid substances produced by living organisms to fulfill specific functions or excreted as waste; does not include hormones or enzymes. Mesenteric Artery Mesenteric_Artery Basal_Layer_of_the_Endometrium Basal Layer of the Endometrium Syncytiotrophoblastic_Cell A large, multinucleated cell having hyperchromatic nuclei and abundant eosinophilic, sometimes vacuolated cytoplasm, in the outer syncytial layer of the trophoblast. Syncytiotrophoblastic Cell Anterior Cruciate Ligament Anterior_Cruciate_Ligament Eye_Segment Segment of the Eye Eye Segment Bronchiole_Epithelium Bronchiole Epithelium Stroma of the Ovarian Cortex Stroma_of_the_Ovarian_Cortex Glandular_Epithelium Glandular Epithelium Internal_Circumflex_Artery Internal Circumflex Artery Ampulla_of_Vater Vater's Ampulla Ampulla of Vater A dilation of the duodenal papilla that is the opening of the juncture of the common bile duct and the main pancreatic duct. (MeSH) Pars Media of the External Acoustic Meatus Pars Media Pars_Media Epicardium Epicardium Secondary_Oocyte A female germ cell in which the first meiotic division is completed. The second meiotic division usually stops short of completion unless fertilization occurs. Secondary Oocyte Olfactory_Cistern Olfactory Cistern Anterior_Supratentorial_Cistern Parasellar Cistern Anterior Supratentorial Cistern Anterior_Spinal_Artery Anterior Spinal Artery The paired upper chambers of the heart. The left atrium receives oxygenated blood from the pulmonary vein and pumps blood into the left ventricle. The right atrium receives venous deoxygenated blood from the entire body via the superior and inferior vena cavae and pumps blood into the right ventricle. Cardiac Atrium Atrium of Heart Atria of Heart Cardiac Atria Cardiac_Atrium Atrium Heart Atrium Atria, Cardiac Heart Atria Auricle of Heart Perineal Muscle Perineal_Muscle Incus Incus Conus_Medullaris Conus Medullaris A cylindrical cell in the innermost layer of the enamel organ which deposits the organic matrix of enamel to create tooth enamel on the surface of the developing tooth. Secretory-Stage Ameloblast Secretory-stage_Ameloblast Respiratory Bronchiole Epithelium Respiratory_Bronchiole_Epithelium A cylindrical multinucleated cell containing contracting myofibrils, across which run transverse light and dark areas, enclosed in a delicate plasma membrane. Striated Muscle Tissue Fiber Striated Muscle Tissue Cell Striated Muscle Cell Striated_Muscle_Tissue_Cell Anterior Descending Coronary Artery Anterior_Descending_Coronary_Artery Juxtaglomerular_Cell Any of a group of cells that are situated in the wall of each afferent arteriole of a kidney glomerulus near its point of entry adjacent to a macula densa and that produce and secrete renin.(Online Medical Dictionary) Juxtaglomerular Cell Patella Patella Feces stool Stool Gastrointestinal Tract, Feces Feces The material discharged from the bowel during defecation. It consists of undigested food, intestinal mucus, epithelial cells, and bacteria. Olfactory Chemoreceptor Olfactory_Chemoreceptor Anterior_Quadrigeminal_Body Superior Colliculus Anterior Quadrigeminal Body Abducens_Nucleus Sixth Cranial Nerve Nucleus Abducens Nucleus Foot_Skin Foot Skin Anterior_Portion_of_the_Corpus_Callosum_Cistern Anterior Portion of the Corpus Callosum Cistern Posterior Wall of the Oropharynx Posterior Wall of Oropharynx Posterior_Wall_of_the_Oropharynx Inferior_Anastomotic_Vein_of_the_Labbe Inferior Anastomotic Vein of the Labbe Inferior Anastomotic Vein of Labbe antigen-presenting cell Antigen-Presenting Cells Antigen Presenting Cell Immunologic Accessory Cells Antigen Presenting Cells APC Accessory Cell Antigen-Presenting Cell Antigen_Presenting_Cell Basal_Lamina_Collagen Basal Lamina Collagen Anterior_Commissure Anterior Commissure Semicircular_Canal Semicircular Canal Lobe of the Right Lung Lobe_of_the_Right_Lung Interfollicular_Area_of_the_Lymph_Node Lymph Node Paracortical Region Lymph Node Paracortex Interfollicular Area of the Lymph Node Left_Pulmonary_Vein Left Pulmonary Vein Patellar Ligament Patellar_Ligament Olecranon Olecranon Nucleus Ambiguus Nucleus_Ambiguus Precursor_NK-Cell Precursor Natural Killer Cell Precursor NK-Cell Inferior_Cerebellopontine_Cistern Lateral Cerebellomedullary Cistern Inferior Cerebellopontine Cistern Anterior_Pole_of_the_Lens Anterior Pole of the Lens Liver Lobe Liver_Lobe Parotidoauricular Parotidoauricular Neurilemma Cell Neurilemmal Cell Neuroglial cells of the peripheral nervous system which form the insulating myelin sheaths of peripheral axons. Schwann_Cell Schwann Cell Schwann cell Schwann Cells Basal_Lamina_of_the_Vascular_Endothelium Basal Lamina of the Vascular Endothelium Stylopharyngeus Stylopharyngeus Lymph Node Part Lymph_Node_Part Tertiary Bronchus Segmental Bronchus Segmental_Bronchus Lobe_of_the_Left_Lung Lobe of the Left Lung Anterior_Communicating_Artery Anterior Communicating Artery Striated_Border Striated Border Melanocyte melanocytes Melanocytes Melanocyte Seminal_Fluid Seminal Fluid Apocrine_Cell A glandular secreting cell in which the apical portion of the secreting cell is cast off along with the secretory products that have accumulated therein. Apocrine Cell Cervical_Lymph_Node Cervical Lymph Node Midbrain Mid-brain Mesencephalon The uppermost portion of the brainstem located between the pons and the diencephalon. The midbrain contains the cerebral peduncles, oculomotor, trochlear and red nuclei, substantia nigra and various other nuclei and tracts. Mesencephalon Kidney_Part Kidney Part Hair Part Hair_Part Body_of_the_Corpus_Callosum Body of the Corpus Callosum Activated Mature Cytotoxic T-Lymphocyte A white blood cell that is derived from a lymphocyte stem cell matured in the thymus and characterized by a CD8 marker on the surface and an antigen-specific T cell receptor which recognizes antigens in the context of MHC class I. Activated_Mature_Cytotoxic_T-Lymphocyte Serratus Ventralis Serratus_Ventralis Gonad gonads Gonads Gonad The gamete-producing tissues, ovary or testis. (MeSH) External_Iliac_Artery_Branch External Iliac Artery Branch A layer of areolar tissue beneath the mucous membrane Submucosa Submucosa Radial Artery Radial_Artery Node_of_Bizzozero Node of Bizzozero Modified epidermal cells located in the stratum basale. They are found mostly in areas where sensory perception is acute, such as the fingertips. Merkel cells are closely associated with an expanded terminal bulb of an afferent myelinated nerve fiber. (MeSH) Merkel's Receptor Merkel Cells Merkel Cell Merkel_Cell Semicircular Duct Semicircular_Duct Mediastinum Part Mediastinum_Part Pectineus Pectineus Cervical_Nerve Cervical Nerve Sphincter Colli Superficialis Sphincter_Colli_Superficialis Glottis glottis Glottis Cochlear_Nuclei Cochlear Nuclei External Iliac Artery External_Iliac_Artery Tectorial_Membrane Tectorial Membrane Node of Ranvier Node_of_Ranvier Transformed_Skin-Homing_T-Lymphocyte Transformed Skin-Homing T-Lymphocyte Activated Skin-Homing T-Lymphocyte A white blood cell, differentiated in the thymus, activated by an antigen that causes the cell to preferentially migrate to the skin. Striae Medullares Auditory Striae Striae_Medullares Ventral Horn of the Spinal Cord Ventral_Horn_of_the_Spinal_Cord Blood_Vessel_Tissue Blood Vessel Tissue Cervical Gland Cervical_Gland Supratentorial Nervous System Supratentorial Brain Supratentorial Anatomy Supratentorial_Brain An undifferentiated cell found in the liver. Liver Stem Cells Liver Stem Cell Liver_Stem_Cell Heart A hollow muscular organ which receives the blood from the veins and propels it into the arteries. It is divided by a musculomembranous septum into two halves -- right or venous and left or arterial -- each of which consists of a receiving chamber (atrium) and an ejecting chamber (ventricle). Heart External_Granular_Layer The second layer of the cerebral cortex, composed of many small pyramidal cells and granule cells with short axons. Small Pyramidal Cell Layer Outer Granular Layer of the Cerebral Cortex External Granular Layer of the Cerebral Cortex Serratus_Dorsalis_Cranialis Serratus Dorsalis Cranialis Non-Articular Bone Surface Non-articular_Bone_Surface Cells forming a framework supporting the organ of Corti. Specific cells are those of Claudius, Deiters and Hensen. (MeSH) Supporting Cell of Organ of Corti Labyrinth Supporting Cells Labyrinth Supporting Cell Supporting_Cell_of_Organ_of_Corti Striated Duct Striated_Duct Aortic Segment Aortic_Segment Blood_Capillary Blood Capillary Cytotrophoblastic_Cell A polygonal, mononucleate cell resembling the cells of the inner layer of the trophoblast, having prominent nucleoli and clear, eosinophilic or basophilic cytoplasm. Cytotrophoblastic Cell Eccrine_Cell A secretory cell that discharges its product without loss of cytoplasm. Eccrine Cell Cervical Gland Secretion Cervical_Gland_Secretion pons Pons Varolii Pons Cerebelli Pons The middle portion of the brainstem located between the midbrain and the medulla oblongata. The fourth ventricle lies dorsal to the pons which also contains the motor trigeminal nuclei and the abducens nuclei. The cerebellum contributes a large number of afferent fibers to the pons. Pons_Varolii Spinal Meninges Connective tissue membranes that surround and support the spinal cord and cauda equina. They are continuous with cranial meninges, which surround and support the brain. Spinal_Meninges External Elastic Membrane A thin layer of fibrous tissue capable of stretching and contracting. It is part of the tunica media of the blood vessels. External_Elastic_Membrane External Geniculate Body External_Geniculate_Body mucous membrane mucosa Mucous Membrane Mucosa Mucosa Ulnar_Artery Ulnar Artery Inguinal_Region groin Inguinal Region Groin External_Cuneiform_Bone_of_the_Foot External Cuneiform Bone of the Foot Deep Palmar Artery Deep_Palmar_Artery Autonomic_Ganglion Autonomic Ganglion Autonomic Ganglia continent reservoir Continent Reservoir Continent_Reservoir Temporal Sulcus Temporal_Sulcus Velum_Interpositum_Cistern Velum Interpositum Cistern Ceruminous_Gland Ceruminous Gland Temporal_Muscle Temporal Muscle Inferior Internal Articular Artery Inferior_Internal_Articular_Artery External Circumflex Artery External_Circumflex_Artery Cervical_Curve Cervical Curve Deep Middle Cerebral Vein Deep_Middle_Cerebral_Vein Splenic Germinal Center Spleen Germinal Center Spleen_Germinal_Center Venous_System Venous System Temporary_Tooth Temporary Tooth Deciduous Tooth Inferior Maxillary Nerve Inferior_Maxillary_Nerve Body_of_the_Nail Body of the Nail Body System, Reproductive, Male Male Reproductive Organ System Reproductive System, Male Penis and Other Genital The sex organs of the male. Male Reproductive Body System Organ System, Male Reproductive Genital System, Male male genital Male Reproductive System Male_Reproductive_System Anatomic_Surface Anatomic Surface External_Carotid_Artery_Branch External Carotid Artery Branch Great_Cerebral_Vein_of_Galen Vein of Galen Great Cerebral Vein of Galen Cerebral Sulcus Cerebral_Sulcus Stratum Reticulare Stratum_Reticulare Temporal Artery Temporal_Artery Serous Membrane Serosa A membrane lining the external walls of the body cavities and reflected over the surfaces of protruding organs. It consists of mesothelium lying on a connective tissue layer, and secretes a watery exudate. Serosa Glossopharyngeal_Nerve Ninth Cranial Nerve Nervus Glossopharyngeus Glossopharyngeal Nerve Cranial Nerve IX Body_of_the_Lateral_Ventricle Body of the Lateral Ventricle Thoracodorsal Artery Dorsal Thoracic Artery Thoracodorsal_Artery Geniculate Ganglion Genicular Ganglion Genicular Ganglia Facial Nerve Ganglion Geniculate_Ganglion External_Carotid_Artery External Carotid Artery Posterior_Surface_of_the_Kidney Posterior Surface of the Kidney Cerumen Earwax Cerumen Vein_of_the_Head_or_Neck Vein of the Head or Neck Intervertebral_Disc Intervertebral Disc Stratum_Papillare Stratum Papillare Nissl Body Nissl_Body Temporal Fossa Temporal_Fossa Body of the Epididymis Body_of_the_Epididymis Tooth Teeth The hard bonelike structures in the jaws of vertebrates; primarily used for eating Tooth Bone Marrow Stem Cell with Variable Lineage Potential A bone marrow stem cell with variable lineage potential is an undifferentiated cell which can undergo division and give rise to a variety of hematopoietic cells. Bone_Marrow_Stem_Cell_with_Variable_Lineage_Potential Lingual Tonsil Lingual_Tonsil Perineuronal_Satellite_Cell A flattened non-neuronal cell surrounding a ganglion cell. Perineuronal Satellite Cell Peripheral Blood Mononuclear Cell PBMC Peripheral_Blood_Mononuclear_Cell Cerebral Peduncle Cerebral_Peduncle Lung_Lobe Lung Lobe Ventricle, Brain Ventricles, Brain Ventricle_Brain The ventricles of the brain are four connected cavities (hollow spaces) centrally located within the brain that connect posteriorly with the central canal of the spinal cord. All of these spaces are developmentally derived from the central canal of the embryonic neural tube. Brain Ventricle Ventricle Ventricle of Brain Ventricles Nervous_System_Fluids_and_Secretions Nervous System-Fluids, Secretions Nervous System, Fluids, Secretions Nervous System Fluids, Secretion Nervous System Fluids and Secretions Fluids and secretions related to the nervous system. The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses. External_Intercostal_Muscle External Intercostal Muscle Deep_Circumflex_Iliac_Artery Deep Circumflex Iliac Artery Mantle_Field mantle field Mantle Field Nervous System, Ear Nervous_System_Ear Occipital_Lobe Occipital Lobe Occipital Cortex The posterior part of the cerebral hemisphere. (MeSH) Cerebral_Gyrus Cerebral Gyrus External Jugular Vein External_Jugular_Vein Promontory Promontory Deep Epigastric Artery Deep_Epigastric_Artery Neuro-Ocular_System Neuro-Ocular System Nervous System, Eye The components of the eye that are also part of the nervous system, including the retina and optic nerve. Cells Cell Normal Cell Cell The smallest units of living structure capable of independent existence, composed of a membrane-enclosed mass of protoplasm and containing a nucleus or nucleoid. Cell Type cell Cell Types Lacrimal Sac Lacrimal_Sac Hematopoietic_and_Lymphatic_System Hematopoietic and Lymphatic System Head_and_Neck_Lymph_Node Lymph Nodes of Head, Face and Neck Lymph Node of Head, Face and Neck Head and Neck Lymph Node Processus Cochleariformis Processus_Cochleariformis Oocyte Oocytes Ovum Ovocytes egg/ovum Egg, Unfertilized Egg The female gamete, germ cells in stages between the prophase of the first maturation division and the completion of the second maturation division. Egg Deep Abdominal Muscle Deep_Abdominal_Muscle Viscera viscera Viscera Infratentorial_Brain Infratentorial Nervous System Infratentorial Brain Infratentorial Anatomy Exocrine_System All endocrine glands, considered as a coherent system. Exocrine System Principal Sensory Nucleus of the Trigeminal Nerve Principal_Sensory_Nucleus_of_the_Trigeminal_Nerve Lacrimal Nerve Lacrimal_Nerve Pulmonary Neuroendocrine Cell Pulmonary_Neuroendocrine_Cell Craniopharyngeal_Duct Craniopharyngeal Duct Deep Cervical Lymph Node Deep_Cervical_Lymph_Node Marginal_Zone Marginal Zone External_Iliac_Vein External Iliac Vein Heart Ventricle Ventricle Cardiac Ventricle The lower right and left chambers of the heart. The right pumps venous blood into the lungs and the left pumps oxygenated blood into the systemic arterial circulation. (MeSH) Cardiac_Ventricle Ventricles, Heart Cardiac Ventricles Reproductive Cells germ cell Sex Cell Initial Cell Sexual Cell reproductive cells