The role of the villi in the small intestine is analogous to

the gastric pits in the stomach.

sweat glands in the skin.

alveoli in the lungs.

cilia in the lungs.

which one would you use best?

http://en.wikipedia.org/wiki/Alveoli

http://en.wikipedia.org/wiki/Intestinal_villi

would it be alveoli in the lungs? I see the information and so forth from other sources as well but have never been good at analogies.

yes

The Avioli transpire new materials and waste materials, so do the villi.

Ummmm good for you i mean u need more info then that!

Ummmm good for you i mean u need more info then that!

the question is : What are the villi of the small intestine?

Hi,

A friend and I are working on a project about the small intestine for science class. We were wondering what information you could give us on the villi inside the small intestine.

what do the villi in the small intestine do?

The villi in the small intestine play a crucial role in the absorption of nutrients from food. They are small, finger-like projections that line the inner surface of the small intestine. The main function of the villi is to increase the surface area of the small intestine, allowing for more efficient absorption of nutrients.

Each villus contains blood vessels and a lymphatic vessel called a lacteal. When food passes through the small intestine, nutrients are broken down and absorbed into the bloodstream through the villi. The blood vessels in the villi carry these absorbed nutrients to the rest of the body for use.

Additionally, the villi have microvilli on their surface, further increasing the surface area available for absorption. These microvilli contain enzymes that help break down the nutrients into smaller molecules, making them easier to absorb.

To get more information about the villi in the small intestine, you can refer to reputable sources such as scientific articles or textbooks. The Wikipedia page on intestinal villi (http://en.wikipedia.org/wiki/Intestinal_villi) can also provide a good overview of the topic.