What do villi do in the small intestine?

Answer 1

Surface area is the amount of surface that is exposed in a space. For instance, a sheet of flat paper covers the same amount of area as a bigger piece of crumpled up paper, but the bigger piece of paper has more surface area. Folding and crumpling surfaces up makes it easy to fit more surface area into a smaller space.

Since villi are very tiny folds that stick out from the small intestines, more surface area is fit inside a smaller space. If you were to "flatten out" all the little villi of the small intestines it would cover a football field. Not so if the inside of the intestine were smooth.

Answer 2

Villi increases the surface area for the absorption of nutrients in small intestine.

Answer 3

Villi are like small little fingers on the inside of the small intestine. They increase the surface area by a very great amount, and help absorb nutrients, minerals and water from food.

Answer 4

Viili are small hairs in the digestive tract. The importance of villi is that it helps food move along and go down easily.

Answer 5

The role of the villi in the small intestine is to absorb nutrients.