NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In humans, structures that absorb most of the products of digestion are the
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ducts of the pancreas
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cells of the esophagus
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muscular folds of the gallbladder
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villi of the small intestine
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Explanation:
Detailed explanation-1: -The lining of the small intestinal mucosa is very highly specialized for maximizing digestion and absorption of nutrients. The lining is highly folded to form microscopic finger-like projections called villi which increase the surface area to help with absorption.
Detailed explanation-2: -The villi number about 10 to 40 per square millimetre (6, 000 to 25, 000 per square inch) of tissue. They are most prevalent at the beginning of the small intestine and diminish in number toward the end of the tract.
Detailed explanation-3: -Listen to pronunciation. (in-TES-tih-nul VIH-ly) Tiny hair-like projections that line the inside of the small intestine. They contain blood vessels and help absorb nutrients.
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