<P> The epithelial tissues are formed by cells that cover the organ surfaces such as the surface of skin , the airways , the reproductive tract , and the inner lining of the digestive tract . The cells comprising an epithelial layer are linked via semi-permeable , tight junctions ; hence , this tissue provides a barrier between the external environment and the organ it covers . In addition to this protective function , epithelial tissue may also be specialized to function in secretion , excretion and absorption . Epithelial tissue helps to protect organs from microorganisms , injury , and fluid loss . </P>
<P> The epithelial tissues are formed by cells that cover the organ surfaces such as the surface of skin , the airways , the reproductive tract , and the inner lining of the digestive tract . The cells comprising an epithelial layer are linked via semi-permeable , tight junctions ; hence , this tissue provides a barrier between the external environment and the organ it covers . In addition to this protective function , epithelial tissue may also be specialized to function in secretion , excretion and absorption . Epithelial tissue helps to protect organs from microorganisms , injury , and fluid loss . </P>
example of a tissue found in the human digestive system
example of a tissue found in the human digestive system
epithelial tissues
epithelial tissues