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The transitional epithelium usually appears cuboidal when relaxed and squamous when stretched. [1] This tissue consists of multiple layers of epithelial cells which can contract and expand in order to adapt to the degree of distension needed. Transitional epithelium lines the organs of the urinary system and is known here as urothelium (pl ...
Cuboidal epithelium has cells whose height and width are approximately the same (cube shaped). Columnar epithelium has cells taller than they are wide (column-shaped). Endothelium refers to cells that line the interior surface of blood vessels and lymphatic vessels , [ 1 ] forming an interface between circulating blood or lymph in the lumen and ...
Transitional epithelium: urinary bladder: Barrier cells Mesoderm: Duct cell seminal vesicle, prostate gland, and similar Reproductive system Barrier cells Efferent ducts cell Epididymal principal cell: Epididymal basal cell: Endothelial cells: circulatory system ABCC9, KCNJ8, RGS5 Planum semilunar epithelial cell of vestibular system of ear
vaginal epithelium: Stratified squamous, non-keratinized - reproductive - female: labia majora: Stratified squamous, keratinized - reproductive - male: tubuli recti: Simple cuboidal: germinal epithelium (male) reproductive - male: rete testis: Simple cuboidal - reproductive - male: efferent ducts: Pseudostratified columnar - reproductive - male ...
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The word epithelium uses the Greek roots ἐπί (epi), "on" or "upon", and θηλή (thēlē), "nipple". Epithelium is so called because the name was originally used to describe the translucent covering of small "nipples" of tissue on the lip. [29] [30] The word has both mass and count senses; the plural form is epithelia.
Not from the actual human body, of course, but from the anatomical diagrams that purported to represent it. Goss was the esteemed editor of the 25th edition of the seminal classic Gray’s Anatomy . Internationally lauded as the authority on all things anatomical, Gray’s Anatomy had been considered essential for any would-be physician to own ...
The ureter is lined by urothelium, a type of transitional epithelium that is capable of responding to stretches in the ureters. The transitional epithelium may appear as a layer of column-shaped cells when relaxed, and of flatter cells when distended. Below the epithelium sits the lamina propria. The lamina propria is made up of loose ...