Cell and Tissue Biology

Objects

All labeled objects are listed alphabetically. Click the appropriate letter below and then on an object name...

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Object names starting with "T":

Object Name # of Images Description
T cell precursors 1 Located in the thymic cortex. Look like any other lymphocyte in LM with ordinary stains.
T cell precursors 1 Located in the thymic cortex. Look like any other lymphocyte in LM with ordinary stains.
T cell precursors 2 Located in the thymic cortex. Look like any other lymphocyte in LM with ordinary stains.
T helper cells 1 Specialized T lymphocytes.
T lymphocyte sleeve 1 T lymphocytes form a sleeve around the central arteries of the spleen.
T lymphocytes 1 A category of lymphocytes.
T lymphocytes (mostly) 1 T lymphocytes form a sleeve around the central arteries of the spleen.
Taenia coli (longitud. muscle) 1 In the large intestine the external longitudinal muscle layer gathers to form thickenings. Taenia means bands.
Tails of spermatozoa 1 (Self-explanatory)
Taste bud 1 A barrel-shaped collection of chemoreceptors present in the epithelium of some papillae in the tongue.
Taste buds 1 Barrel-shaped collections of chemoreceptors present in the epithelium of some papillae in the tongue.
Taste pores 1 A small opening to the oral cavity from the epithelium covering a taste bud.
Tectorial membrane 1 A jelly-like structure resting on the giant microvilli of inner- and outer- hair cells of the organ of Corti in cochlea. Produced by the limbus spiralis.
Tectorial membrane 1 A jelly-like structure resting on the giant microvilli of inner- and outer- hair cells of the organ of Corti in cochlea. Produced by the limbus spiralis.
Tectorial membrane 2 A jelly-like structure resting on the giant microvilli of inner- and outer- hair cells of the organ of Corti in cochlea. Produced by the limbus spiralis.
Tectorial membrane (remnants) 1 A structure located directly above the sensory cells of the organ of Corti.
Tectorial membrane, developing 1 A structure located directly above the sensory cells of the organ of Corti.
Tectorial mlembrane 1 A structure located directly above the sensory cells of the organ of Corti.
Temporal bone 1 The inner ear is embedded in the pars petrosa of the temporal bone. This is said to be the hardest bone in our bodies.
Temporal bone 2 The inner ear is embedded in the pars petrosa of the temporal bone. This is said to be the hardest bone in our bodies.
Tendon 2 Strong bundle of collagen fibers connecting muscle to bone.
Tendon 3 Strong bundle of collagen fibers connecting muscle to bone.
Testis 1 Primary male sex organ. Composed of tubular exocrine glands for production of spermatozoa, and interstitial (endocrine) glands (Leydig cells) for production of testosterone.
Testis 1 Primary male sex organ. Composed of tubular exocrine glands for production of spermatozoa, and interstitial (endocrine) glands (Leydig cells) for production of testosterone.
Testis 1 Primary male sex organ. Composed of tubular exocrine glands for production of spermatozoa, and interstitial (endocrine) glands (Leydig cells) for production of testosterone.
Testis 1 Primary male sex organ. Composed of tubular exocrine glands for production of spermatozoa, and interstitial (endocrine) glands (Leydig cells) for production of testosterone.
Theca externa 1 A layer of concentrically-arranged fibroblasts and collagen fibers surrounding the developing follicle in the ovary.
Theca interna 4 A concentric, stromal sheath around growing and mature ovarian follicles separated by a basal lamina from the granulosa cells. Highly vascularized. Will change into theca lutein cells after ovulation.
Theca lutein cells 3 After ovulation the theca interna cells luteinize and become theca lutein cells of the corpus luteum.
Theca lutein cells 1 After ovulation the theca interna cells luteinize and become theca lutein cells of the corpus luteum.
Thick line 1 Region of contact between layers of the myelin sheath.
Thick skin 1 Found in palms and soles.
Thin limb lumina 1 (Self-explanatory)
Thin limb lumina 1 (Self-explanatory)
Thin limbs of Henle 1 The limb of Henle of long nephrons is lined by thin squamous epithelium, thicker than the endothelium of vasa recta. (In EM one can distinguish several kinds of squamous epithelia.)
Thin line 1 Region of contact between layers of the myelin sheath.
Thin loop of long nephron 1 The limb of Henle of long nephrons is lined by thin squamous epithelium, thicker than the endothelium of vasa recta. (In EM one can distinguish several kinds of squamous epithelia.)
Third ventricle 1 Part of the ventricular system of the brain. It contains cerebrospinal fluid.
Third ventricle 2 Part of the ventricular system of the brain. It contains cerebrospinal fluid.
Third ventricle 1 Part of the ventricular system of the brain. It contains cerebrospinal fluid.
Three rows of outer hair cells 1 (Self-explanatory)
Thymic capsule 1 Connective tissue layer covering the thymus.
Thymic cortex 1 Outer darkly-stained area filled with T lymphocytes and their precursors. The stem cells from bone marrow enter via blood vessels in the cortex. NO AFFERENT lymphatics exist. Cortex also contains reticular epithelial cells, macrophages and dendritic cells
Thymic cortex 1 Outer darkly-stained area filled with T lymphocytes and their precursors. The stem cells from bone marrow enter via blood vessels in the cortex. NO AFFERENT lymphatics exist. Cortex also contains reticular epithelial cells, macrophages and dendritic cells
Thymic cortex 1 Outer darkly-stained area filled with T lymphocytes and their precursors. The stem cells from bone marrow enter via blood vessels in the cortex. NO AFFERENT lymphatics exist. Cortex also contains reticular epithelial cells, macrophages and dendritic cells
Thymic lobule 1 The thymus is divided into lobules by connective tissue. A lobule contains both cortex and medulla.
Thymic lobule 1 The thymus is divided into lobules by connective tissue. A lobule contains both cortex and medulla.
Thymic medulla 1 Inner, lightly-stained area of a thymic lobule. Fewer thymocytes are present. More epithelial cells and other cells are present. The mature T cells exit through efferent lymphatics and venules via the medulla. NO AFFERENT lymphatics exist in the thymus.
Thymic medulla 2 Inner, lightly-stained area of a thymic lobule. Fewer thymocytes are present. More epithelial cells and other cells are present. The mature T cells exit through efferent lymphatics and venules via the medulla. NO AFFERENT lymphatics exist in the thymus.
Thymocyte 1 A generic term applying to lymphocytes in the thymus. All lymphocytes look alike under ordinary staining conditions.
Thymus epithelial cell nuclei 1 Epithelial cells (endodermal-derived) are large, irregularly-shaped cells forming a mesh via desmosomes. They play an important role in T cell development and maturation. The other cells of the thymus reside in this mesh.
Thyro-arytenoid muscle 2 Skeletal muscle located between thyroid and arytenoid cartilages in the larynx. Regulates the tension of vocal cords. Innervated by the laryngeal branch of the recurrent vagus.
Thyro-arytenoid muscle 1 Skeletal muscle located between thyroid and arytenoid cartilages in the larynx. Regulates the tension of vocal cords. Innervated by the laryngeal branch of the recurrent vagus.
Thyroid cartilages 1 Form a shield in front of the larynx. Are composed of hyaline cartilage.
Thyroid cells 1 Cuboidal or columnar cells surrounding colloid. They produce both the stored thyroglobulin and release thyroid hormones. Peroxisomes are needed for iodination and lysosomes for digestion of reabsorbed colloid.
Thyroid cells 1 Cuboidal or columnar cells surrounding colloid. They produce both the stored thyroglobulin and release thyroid hormones. Peroxisomes are needed for iodination and lysosomes for digestion of reabsorbed colloid.
Thyroid cells 2 Cuboidal or columnar cells surrounding colloid. They produce both the stored thyroglobulin and release thyroid hormones. Peroxisomes are needed for iodination and lysosomes for digestion of reabsorbed colloid.
Thyroid follicle 1 Composed of lining epithelial cells surrounding the colloid inside it.
Thyroid follicle 1 Composed of lining epithelial cells surrounding the colloid inside it.
Thyroid gland 1 Endocrine gland situated on the anterior surface of the trachea just below the larynx. The only endocrine gland storing its hormone extracellularly.
Thyroid tissue 1 Composed of thyroid follicles. Identify also the parathyroid tissue if present in this view.
Thyroid tissue 1 Composed of thyroid follicles. Identify also the parathyroid tissue if present in this view.
Thyroid tissue 1 Composed of thyroid follicles. Identify also the parathyroid tissue if present in this view.
Tight junction 1 Zonula occludens. Forms an impermeable seal between two cells. In the GI tract tight junctions prevent the escape of digestive enzymes from the lumen into the intracellular space. Also prevent lateral migration of proteins of the apical cell membrane.
Tight junction 2 Zonula occludens. Forms an impermeable seal between two cells. In the GI tract tight junctions prevent the escape of digestive enzymes from the lumen into the intracellular space. Also prevent lateral migration of proteins of the apical cell membrane.
Tight junctions 1 Form an impermeable seal between two cells. In the GI tract tight junctions prevent the escape of digestive enzymes from the lumen into the intracellular space. Also prevent lateral migration of proteins of the apical cell membrane.
Tight junctions 1 Form an impermeable seal between two cells. In the GI tract tight junctions prevent the escape of digestive enzymes from the lumen into the intracellular space. Also prevent lateral migration of proteins of the apical cell membrane.
Tight junctions 2 Form an impermeable seal between two cells. In the GI tract tight junctions prevent the escape of digestive enzymes from the lumen into the intracellular space. Also prevent lateral migration of proteins of the apical cell membrane.
Tip (distal end) of valve 1 Tip of the cusp of the semilunar valve.
Tongue 2 Labeled for orientation purposes in this view.
Tongue 1 Labeled for orientation purposes in this view.
Trabecula 1 In this instance, from spleen. In general a trabecula is an inward protrusion of connective tissue of the capsule. Provides structural support for the parenchyma.
Trabecula (connective tissue) 1 In this instance, from spleen. In general a trabecula is an inward protrusion of connective tissue of the capsule. Provides structural support for the parenchyma.
Trabeculae 1 In this instance, from spleen. In general a trabecula is an inward protrusion of connective tissue of the capsule. Provides structural support for the parenchyma.
Trabeculae 1 In this instance, from spleen. In general a trabecula is an inward protrusion of connective tissue of the capsule. Provides structural support for the parenchyma.
Trabecular meshwork (collapsed) 1 Surrounds the angle of the anterior chamber of the eye. It is the first in the exit pathway for intraocular fluid.
Transitional epithelial cell 2 Located in the urinary tract only. The epithelium can expand without breaking. In the empty bladder the supermost cells tend to bulge into the lumen. All cells probably reach the basal lamina. The surface cells slough off if infected.
Transitional epithelium 2 Located in the urinary tract only. Can expand without breaking. When the bladder is empty the supermost cells tend to bulge into the lumen. All cells probably have cell processes reaching the basal lamina. The surface cells slough off if infected.
Transitional epithelium 3 Located in the urinary tract only. Can expand without breaking. When the bladder is empty the supermost cells tend to bulge into the lumen. All cells probably have cell processes reaching the basal lamina. The surface cells slough off if infected.
Transitional epithelium (calyx) 1 Located in the urinary tract only. Can expand without breaking. When the bladder is empty the supermost cells tend to bulge into the lumen. All cells probably have cell processes reaching the basal lamina. The surface cells slough off if infected.
Tributary vein lumen 1 View of a small vein entering a larger one. Note the valve preventing backflow.
Tributary vein lumen 1 View of a small vein entering a larger one. Note the valve preventing backflow.
Tributary vein wall 1 View of a small vein entering a larger one. Note the valve preventing backflow.
Tributary vein wall 1 View of a small vein entering a larger one. Note the valve preventing backflow.
Trilaminar plasma membrane 1 Unit membrane.
Trilaminar plasma membrane 2 Unit membrane.
Triplet microtubules 1 Basal bodies and centrioles are comprised of nine triplet microtubules. The centriole organizes mitotic spindle. Basal bodies produce cilia.
Tubular cristae 1 In steroid-secreting cells the mitochondrial cristae are often tubular. Most carriers of electron transport are located here.
Tunica adventitia 1 The outermost of the three layers of the blood vessel wall. It contains collagen, some elastic fibers, and some fibroblasts.
Tunica albuginea 4 In testis, the outermost connective tissue capsule. In the ovary, it lies just under the epithelium. Rich in collagen fibers in both cases.
Tunica albuginea 1 In testis, the outermost connective tissue capsule. In the ovary, it lies just under the epithelium. Rich in collagen fibers in both cases.
Tunica vasculosa 1 In testes, the layer just beneath the tunica albuginea. Contains blood vessels.
Type I hair cells 1 These are the main sensory cells for angular acceleration and proprioception.
Type I pneumonocyte nucleus 1 Type I pneumonocytes are simple squamous cells lining the alveoli. Their cytoplasm is so thin that it is difficult to distinguish them from endothelial cells (in the LM).
Type II pneumonocytes 1 Type II pneumocytes line alveoli. Although they are more numerous than type I cells, comprising 60% of the alveolar lining cells by number, they cover only about 5 per pecent of the alveolar air surface, because of their cuboidal shape. The type II pneumocytes have vesicles containing surfactant. During fixation the surfactant is lost, leaving small holes behind.
Type II pneumonocytes 1 Type II pneumocytes line alveoli. Although they are more numerous than type I cells, comprising 60% of the alveolar lining cells by number, they cover only about 5 per pecent of the alveolar air surface, because of their cuboidal shape. The type II pneumocytes have vesicles containing surfactant. During fixation the surfactant is lost, leaving small holes behind.
Type II pneumonocytes 2 Type II pneumocytes line alveoli. Although they are more numerous than type I cells, comprising 60% of the alveolar lining cells by number, they cover only about 5 per pecent of the alveolar air surface, because of their cuboidal shape. The type II pneumocytes have vesicles containing surfactant. During fixation the surfactant is lost, leaving small holes behind.
Type III collagen fibers 1 Type III collagen fibers are more delicate than type I. They are abundant in the cardiovascular system and lymphoid tissues. They provide structural support.
Type III collagen fibers 4 Type III collagen fibers are more delicate than type I. They are abundant in the cardiovascular system and lymphoid tissues. They provide structural support.

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