Epithelial Cells Are Continually Being Shed from the Villi Because

question 296

Multiple Choice

Epithelial cells are continually being shed from the villi because

• 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.
• E) none of these answers.

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Definitions:

Obsessive-Compulsive Disorder

A mental disorder characterized by intrusive thoughts (obsessions) and repetitive behaviors (compulsions).

Panic Disorder

A mental health condition characterized by sudden and recurrent panic attacks, often accompanied by ongoing fear of future attacks and significant behavior change to avoid them.

Conversion Disorder

A mental health condition where psychological stress is expressed through physical symptoms with no identifiable physical cause.

Addiction

A chronic condition characterized by the compulsive use of substances or engagement in behaviors despite harmful consequences.