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The inner lining of the small intestine ...

The inner lining of the small intestine has numerous finger like projections. What are they called ? List their functions.

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Villi.
(i) Villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body.
(ii) It also absorbs water.
(iii) They increase the surface area for the absorption of food.
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