HUMAN PHYSIOLOGY
DIGESTION AND ABSORPTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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circular folds
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villi
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microvilli
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all of the above
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Detailed explanation-1: -Microvilli increase the surface area of the small intestine which helps in absorption.
Detailed explanation-2: -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-3: -Answer and Explanation: The villi and microvilli of the small intestine are responsible for increasing the surface area of the small intestine.
Detailed explanation-4: -The two major structure that increase the absorptive surface area of the small intestine are the villi and microvilli. Villi are located at the inner walls of the small intestine as part of the circular folds that are small finger-like outgrowths present which aid in the absorption process.