The digestion of the small intestine (small intestine).
Digestion and absorption of nutrients mainly happened here. The small intestine has the shape of a long tube about 15 feet with a diameter of about 1 inches, divided into 3 when is the early, middle and late the inner wall of the small intestine is a protrusion of the Villi (villi) within the villi capillaries and lymph help absorb food with small molecules into the cells.