The alimentary canal is a single constant tube that has the dental cavity, pharynx, esophagus, stomach, small intestine, and big intestine. After food is chewed, made right into a bolus, and swallowed, the activity of the epiglottis routes the bolus right into the esophagus. Indigenous there, peristaltic waves propel ingested foods items through the alimentary canal.

You are watching: The propulsive process that moves food from one organ to the next is called:

1. The Epiglottis Directs Swallowed foodstuffs Down the Esophagus


The respiratory and digestive systems share structures in the earlier of the dental cavity that connect with both the trachea (of the respiratory tract system) and also the esophagus (of the digestive system). What prevents swallowed food from “going down the not correct pipe”? v each swallow a structure called the epiglottis closes over respiratory structures. The swallowed bolus stays on course and is directed toward the esophagus. One peristaltic wave deserve to be enough to relocate a bolus down the esophagus and also into the stomach.

2. Peristalsis Is the contraction of Muscle tissue That Helps relocate and failure Foodstuffs


The wall surfaces of the alimentary canal include layers of smooth muscle managed by the autonomic worried system. Alternative contraction and relaxation of this muscles is dubbed peristalsis. Peristaltic waves press the swallowed bolus down the esophagus. In the stomach, peristalsis churns swallowed food, mixing it with gastric juices. These mechanical and chemical plot further breakdown food into a substance referred to as chyme. That takes about a minute come chew a item of food right into a bolus and a few seconds come swallow it. As soon as in the stomach foods items take a few hours to come to be chyme.

3. Peristaltic Waves relocate Nutrients and also Waste through the Intestines


Most nutrient absorption from the foods we eat wake up in the little intestine. When chyme overcome from the stomach right into the small intestine, peristaltic waves transition it back and forth and mix it v digestive enzymes and also fluids. Nutrients from the chyme are soaked up into the bloodstream v the intestinal walls Peristaltic tide in the small intestine are smaller sized and an ext regular, pushing the chyme for 3 to 6 hours before passing it to the large intestine where any kind of final absorption takes place. Peristaltic waves help compact and also move waste and indigestible foods items through the big intestine because that elimination.

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External Sources

Microbes and You from The Science an imaginative Quarterly.

A cadaver picture of the epiglottis indigenous Stony Brook University institution of Medicine. The body Online.

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