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Villi are small finger like projections in the small helps in increasing the area for absorption purposes.
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the inner walls of small intestine have thousands of finger like increase the surface area of absorption in digested food

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Villi - small finger like outgrowings or cluster like projections on the walls of intestines in our body.  villi is also used to mean some other parts in our the body ..  it is plural of villus
Villi are also found in brain and in fetus during pregnency.

THese projections increase the surface area of contact and so increase the absoption of nutrition from the digestive process

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