Epithelial tissues cover most organs and cavities within the body, forming a barrier to keep different body systems separate and regulate the exchange of materials.
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Epithelial tissues cover most organs and cavities within the body, forming a barrier to keep different body systems separate and regulate the exchange of materials.
The main function of epithelial tissues in the animal body is to provide protection, act as a barrier against pathogens, regulate the exchange of substances, and facilitate absorption, secretion, and sensation across various body surfaces and cavities.