Which of the following describes the contraction of the smooth muscle in order to move food down the esophagus to the stomach?

Question

Quizplus · Accepted Answer

Peristalsis is the contraction of smooth muscle that lines the esophageal walls. The smooth muscle has a circular layer as well as a longitudinal layer of muscle that allows a "wringing" action of the smooth muscle to push food down the esophagus.
Mastication refers to the chewing actions carried out by the mouth that mechanically breaks down food.
Deglutition is the process of swallowing, where food is pushed from the mouth to the esophagus through the pharynx.
Pharyngeal constriction refers to the muscular action of the throat that allows food to be pushed towards the esophagus.

Which of the Following Describes the Contraction of the Smooth