Question

Explain how the shape of the small intestine and the many villi on the inner surface of the wall of the small intestine increase the rate of absorption of digested food molecules from the lumen of the small intestine to the blood.

Answer 1

The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for theabsorption of nutrients.

Im so sorry if this doesnt help