NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What do the villi do?
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Digests food in the mouth.
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Digests food in the stomach
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Protects the stomach from digesting iteself
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Absorbs nutrients from food so the body has energy.
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Explanation:
Detailed explanation-1: -The top surface of each villus has many microscopic projections called microvilli. The epithelial cells of these structures absorb nutrients from the digested food and release them to the bloodstream on the other side.
Detailed explanation-2: -The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine and push the mixture forward to help with further digestion. The walls of the small intestine absorb the digested nutrients into the bloodstream. The blood delivers the nutrients to the rest of the body.
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