Villi belong primarily to the small intestine of the gut.
It is here that most of the food needs to be absorbed into the body proper for use by it. However, absorption best occurs across a very large surface area where food molecules are in direct contact with the walls of the lining through which they must pass for the body's use.
Villi are countless long projections of the intestinal wall [somewhat like thick hairs, but made of body tissue itself] projecting into the intestine itself that effectively create a surface area of the intestinal wall that is many times greater than it would otherwise be if the wall was sheer and the projecting villi did not exist.
In this way, nutrients find their way far more efficiently into the body proper for use.
Small Intestine ^^
The small intstine.
The small intestines (digestive system).
Digestive System
Villi
villi
They absorve add productes..
Villi are linked between the digestive systme and excretory system.
No there are not. Villi are there for absorbing nutrients and protein in the small intestine and are part of absorption in the digestive system.
When your food is being digested and it is in your small intestines and the villi sucks up the nutrients it gives the nutrients to blood vessels which take it to your cells. Small intestines and villi are parts of digestive system. Blood vessels and cells are part of circulatory system.
how does the structure of the villi
The system in the body that absorbs nutrients is the digestive system. Within the digestive system is the small intestine. When food passes through the small intestine, villi, absorb all of the nutrients the body needs from the food. Villi are small fingerlike projections in the small intestine that increase surface area and "reach" out to the food and absorb its nutrients. So, to answer your question, villi that are in the small intestine within the digestive system absorb what nutrients our body needs.
mouth
The small intestine has little villi on the bottom which take all of the nutrients from the food.