Question

The movement of an esophagus to help the food down the GI tract __________

(a) Mastication

(b) Emulsification

(c) Peristalses

(d) Ejection

This question was posed to me in class test.

This intriguing question originated from Anatomy and Physiology of G.I.T topic in section Gastroenterology of Clinical Science

Answer 1

The correct option is (c) Peristalses

For explanation: After chewing, the tongue rolls the food in the form of a bolus and shifts the food to the oesophagus. The walls of the esophagus contract and relax and slowly allow the food to move down and enter the stomach. This allows the food to enter the stomach slowly and avoid and acid splash. This movement is peristalsis.