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Human Anatomy and Physiology
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How is the function of epithelium reflected in its structure?

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Wiki User
02/29/2008

Since epithelium needs to serve as both a barrier and selectively permeable membrane, the cells need to be tightly junctioned to one another (thus prohibiting paracellular transport) and need to express channels, transporters or exchangers to allow for movement of selected ions/molecules across the epithelial barrier.