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Why is the presence of villi and microvilli is crucial to the functioning of the digestive system? i.e the small intestine.

Why is the presence of villi and microvilli is crucial to the functioning of the digestive system? i.e the small intestine.
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why is the presence of villi and microvilli is crucial to the functioning of the digestive system? i.e the small intestine.

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User Roman Kalinchuk
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Villi increases the surface area to help with absorption and digestion. Micro-villi form a brush border that vastly increases the surface area of the plasma membrane so larger amounts of nutrients can be absorbed.
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User LordOfThePigs
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