Question

what is epithelial tissue, function and location?

Answer 1

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Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. ... Functions ofepithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing.

Answer 2

Epithelial tissue : is a fundamental tissue which forms a continuous sheet of closely packed cells that covers all external and internal surfaces of the animal body. Epithelium is, therefore also called covering or protective tissue. Epithelial cells are tightly held together by a cementing material. Epithelial tissue rests on a dense matrix called basement membrane. No intercellular spaces. Anything entering or leaving the body must cross the epithelial layer. As a result, the permeability of the cells of various epithelia play an important role in regulating exchange of materials between the body and external environment. Different epithelia show different structures that correlate with their unique functions