After the food exits the stomach it enters the small intestine. The small intestine is the longest organ in the small intestine it mesures 6 meters long, and makes up 2/3 of the digestive system. In this organ most chemical digestion takes place. The enzymes from the pancreas and the bile from the liver are release to the small intestine, when the food particles are coming into this organ. The small intestine is line with villi that absorb all of the nutrients out of the material that como in. To the right is a picture of the 6 meters long small intestine.
The surface of small intestine is covered with millions of finger-shaped structure called villi. Villi absorbed all the nutrients after the chemical digestion takes place (food particles are broken down more). The villi after it absorbs the nutrients passes all of this nutrients into the bloodstream. To the left is a picture of the villi as you can see it is connected to tiny blood vessels were the nutrients are pass to.