Where does compaction occur. Stool or waste that is left over from the digestive process is passed through the colon by. How Food Moves Through Your Body Saint Luke S Health System The digestive system plays an important role in the absorption of nutrients into the body. . The alimentary canal is made up of the oral cavity pharynx esophagus stomach small intestines and large intestines. Emptying the stomach takes 26 hours. Then the bolus enters into the stomach through the tube called Esophagus here the bolus enters into the. Chew in mouth stomach mixes and meters out into duodenum and then into small intestine for absorption. The Mouth The mouth is the beginning of the digestive system and in fact digestion starts here before you. 44 years experience Colon and Rectal Surgery. Esophagus - food moved towards stomach by paristaltic movements. It takes 35 hours from entry to the duodenum to exit from the ileu...