The document summarizes the mammalian digestive system. It describes the main components of the system including the mouth, esophagus, stomach, small intestine, pancreas, large intestine, liver, and their functions. The digestive process begins with ingestion and mechanical breakdown of food in the mouth. Enzymatic digestion then occurs as food moves through the stomach, small intestine, pancreas and liver. Nutrients are then absorbed and assimilated for use by the body. Undigested waste is eliminated through the large intestine and rectum.