Villi are tiny finger-like projections seen in the small intestine. They are more than millions of villi in the small intestine performing the following functions:
- The villi absorb nutrients from the food and cause their conversion into glucose
- They increase the surface area for the digested food to be absorbed thereby increasing the efficiency
- Once the food is digested, the villi absorb them and pass it to the bloodstream as they contain several blood vessels. Thus, absorbed food from the blood stream is delivered to every cell of the body.