As food moves into the esophagus from the mouth:

Question

Quizplus · Accepted Answer

Peristaltic contractions move food toward the stomach. These contractions push the food down through the esophagus and into the stomach. Gravity may provide some assistance, but peristalsis is the primary mechanism for moving the food. Smooth muscle contractions continue in the esophagus during this process. Digestive enzymes are not secreted by the lining of the esophagus, and the gastroesophageal sphincter opens to allow food to enter the stomach.

As Food Moves into the Esophagus from the Mouth