How do villi aid absorption in the small intestine?

1 Answer
Oct 4, 2016


Increase surface area for absorption


Villi are tiny, fingerlike projections on the lining of the small intestines. As they protrude out, they increase the surface area in with digested nutrients can be absorbed. Larger surface area means more material can be absorbed and at a faster rate, as more of the lining is exposed to the material to absorb it.