Why Are Epithelial Cells Continually Being Shed from the Villi

question 199

Multiple Choice

Why are epithelial cells continually being shed from the villi?

• A) The intracellular enzymes digest important cellular constituents, causing the cells to disintegrate and slough.
• B) The body needs a continual supply of protein derived from the digestion of these cells.
• C) New cells are continually being produced in the crypts at the base of the villi and migrate upward.
• D) Acid entering the small intestine from the stomach constantly destroys the small intestinal lining, causing the cells to slough.

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