Peristalsis is an involuntary muscle movement whose function is to move food through the digestive system.
Peristalsis is an involuntary muscle movement whose function is to move food through the digestive system. The main peristaltic movement occurs in the passage of food through the esophagus to the stomach.
Analyzing the alternatives that exercise gives us, we can conclude that the best definition of peristalsis is "Muscular contractions in the esophagus that moves food down to the stomach".
The answer is option "A".
