MEDICAL
DUODENUM JEJUNUM AND ILEUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of the villi? (select all that apply)
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increase the surface area
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chemically break down food
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absorb nutrients into the bloodstream
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mechanically break down food
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Explanation:
Detailed explanation-1: -The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients. Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
Detailed explanation-2: -Villi That Line the Walls of the Small Intestine Absorb Nutrients. Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system.
Detailed explanation-3: -The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.
There is 1 question to complete.