What are villi? Explain their functions on the process of digestion?
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villi are the small structure on the inner side of small intestine to extract all the nutrition from the food
and in large intestine to take all liquid from the food
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Explanation:
The inner surface of the small intestine has numerous finger-like projections called villi (Singular villus).
Villi increase the surface area which helps in absorption of the digested food especially fatty acids and glycerol. Also, the blood vessels in that help in absorbing the nutrients into the blood.
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