Important Tips - Study of tissue outside the body in a glass tube is known as in vitro, while study of living tissues in situ is known as in vivo. - Among epithelia, simple epithelia were first to evolve. - Transitional epithelium also called plastic epithelium or urothelium. It lacks basement membrane - False epithelium derived from mesenchyma (a diffuse network of tissue derived from embryonic mesoderm) and lining the synovial cavities. - Mammary glands without teats are present in prototheria. - A malignant tumour arising from an epithelium is called a carcinoma. If it arises from a squamous epithelium it is a squamous cell carcinoma and if it arises from glandular epithelium it is called an adenoma. - The epithelial lining of brain ventricles and central canal of spinal cord is known as ependyma. - Stereocilia are elongated membrane outgrowths found in certain parts of male reproductive tract. - The cuboidal or columnar cells of germinative layer rest upon a basement membrane and continuously divide mitotically to produce new layer of cells. - Brush bordered cuboidal epithelial cells bear microvilli on their free ends. - Myoepithelium made up of fusiform or stellate cells capable of contraction. - Basement membrane of epithelial tissue is non-cellular. - Recent work suggests that basement membranes may play a role in cell-organisation as molecules within the membrane interact with receptors on cell surfaces substances present in the membrane may influence morphogenesis of cells to which they are attached. - Cilia are fine fibres having 9 2 internal structure and connected with cell internally by basal granules. - In frog and snakes, moulted skin is stratum corneum of flat cells. Sweat glands of skin of mammals are simple coiled tubular glands while those of armpit are simple branched tubular glands. - Bartholins duct is lined by cuboidal epithelium. - Stereocilia present in Epididymis. - Study24x7
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K-12 Medical
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Important Tips - Study of tissue outside the body in a glass tube is known as in vitro, while study of living tissues in situ is known as in vivo. - Among epithelia, simple epithelia were first to evolve. - Transitional epithelium also called plastic epithelium or urothelium...

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