Food is propelled through the esophagus by
a. gravity. c. cardiac sphincter suction.
b. salivary fluids. d. peristalsis.
D
The functions of the esophagus are to accept a bolus of food from the oropharynx, transport the bolus through the esophageal body by gravity and peristalsis, and release the bolus into the stomach through the lower esophageal sphincter. This process is known as swallowing.
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