Question

What is villi? Write it's function.​

Answer 1

The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.

The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb nutrients from the liquid mixture called chyme produced in the stomach from the food we eat.

Answer 2

The primary function of villi is to increase the membrane's surface area, allowing more food to be absorbed.

Explanation:

• Villi are minute vascular extensions on the small intestine's inner wall that assist absorb nutrients from the food we consume and then transfer those nutrients to the bloodstream so they can reach where they're required.

• The small intestine's inner wall is folded into finger-like structures called villi. Microvilli are hair-like structures found in Villi. Villi and microvilli stretch to increase the surface area of the small intestine's inner membrane, allowing more digested food to be absorbed.