Definition of epithelium

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Epithelium (n.) The superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities..

Lern More About Epithelium

Mesothelium :: Mesothelium (n.) Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the c/lum..
Epithelium :: Epithelium (n.) The superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities..
Fuscin :: Fuscin (n.) A brown, nitrogenous pigment contained in the retinal epithelium; a variety of melanin..
Squamaceous :: Squama (n.) A scale cast off from the skin; a thin dry shred consisting of epithelium.
Myoepithelial :: Myoepithelial (a.) Having the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra..
Lipochrin :: Lipochrin (n.) A yellow coloring matter, soluble in ether, contained in the small round fat drops in the retinal epithelium cells. It is best obtained from the eyes of frogs..
Endothelium :: Endothelium (n.) The thin epithelium lining the blood vessels, lymphatics, and serous cavities. See Epithelium..
Stigma :: Stigma (v. t.) A small spot, mark, scar, or a minute hole; -- applied especially to a spot on the outer surface of a Graafian follicle, and to spots of intercellular substance in scaly epithelium, or to minute holes in such spots..
Tapetum :: Tapetum (n.) An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid..
Myeloidin :: Myeloidin (n.) A substance, present in the protoplasm of the retinal epithelium cells, and resembling, if not identical with, the substance (myelin) forming the medullary sheaths of nerve fibers..
Subequal :: Subepithelial (a.) Situated under the epithelium.
Epithelioid :: Epithelioid (a.) Like epithelium; as, epithelioid cells..
Ecteron :: Ecteron (n.) The external layer of the skin and mucous membranes; epithelium; ecderon.
Tubule :: Tubule (n.) A minute tube lined with glandular epithelium; as, the uriniferous tubules of the kidney..
Ciliated :: Ciliated (a.) Provided with, or surrounded by, cilia; as, a ciliate leaf; endowed with vibratory motion; as, the ciliated epithelium of the windpipe..
Epithelial :: Epithelial (a.) Of or pertaining to epithelium; as, epithelial cells; epithelial cancer..
Epitheliums :: Epitheliums (pl. ) of Epitheliu.
Purpurogenous :: Purpurogenous (a.) Having the power to produce a purple color; as, the purpurogenous membrane, or choroidal epithelium, of the eye. See Visual purple, under Visual..
Corium :: Corium (n.) The deep layer of mucous membranes beneath the epithelium.
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