Where are villi? What is their location and function?

Explanation:

Villi are millions of tiny finger-like projections that line the small intestine. The surface area of these villi is increased, allowing for more efficient food absorption.

Numerous blood arteries exist within these villi, which absorb the digested food and transport it to the bloodstream.

The absorbed meal is then supplied to each and every cell of the body via the bloodstream.

Final Answer:

Villi are microscopic projections on the inner surface of the small intestine that aid in the absorption of digested food. These aid in the expansion of the surface area of the intestinal walls.