what are the various functions of all types of epithelial tissues?
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Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing. Epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue, through the basement membrane.
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main functions of epithelial tissues are filtration , diffusion, secreation ,absorptionand movement of substance by ciliary action
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