NUTRITION
DIGESTIVE SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase the surface area of absorption
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decrease the surface area of absorption
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digest more food.
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None of the above
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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 inner surface of the mucosa has many finger-like projections called villi. The villi increase the surface area of the small intestine, which helps it absorb digested food.
Detailed explanation-3: -Lining the small intestine are villi. Villi increase the surface area of the small intestine allowing more nutrients from the lumen to be absorbed in the circulatory system.
Detailed explanation-4: -The digestive and absorption capacities of the small intestine are greatly enhanced by circular folds and fingerlike projections of the intestinal mucosa called microvilli.
Detailed explanation-5: -The small intestine is divided into three, they are duodenum, jejunum and ileum. The inner walls of the ileum are covered with numerous small finger-like projections known as villi which provide a larger surface area for the absorption of digested food.