What are the major roles of the villi and microvilli in the small intestine?

Question

What are the major roles of the villi and microvilli in the small intestine?​

Quizplus · Accepted Answer

The major role of villi and microvilli in the small intestine is to increase the surface area available for nutrient absorption. The villi are finger-like projections that line the interior of the small intestine, while the microvilli are tiny hair-like projections on the villi. Together, they form a brush border that increases the surface area for absorption. The microvilli trap nutrients and enzymes in the small intestine, allowing the villi cells to absorb them. This efficient absorption process is crucial for the body to extract the necessary nutrients from food.

What Are the Major Roles of the Villi and Microvilli