The main function of intestinal villi is to:
Correct answer: C. Provide a large surface area of absorption
- A. Stimulate peristalsis
- B. Prevent antiperistalsis
- C. Provide a large surface area of absorption
- D. Distribute digestive enzymes uniformly
Explanation
The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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