The digestive process plays an extremely important role, helping supply nutrients to the body. This process is not simply the normal activity of the digestive tract, liver or bile, but also requires the coordination of the entire body.
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules that can be absorbed into the plasma. After food passes through the mouth, esophagus, and stomach, it goes to the small intestine. Food digestion will take place in the small intestine, absorbing most nutrients from food. Finally, the waste is sent down to the large intestine and out of the body.