Food moves along the digestive tract as the result of contractions by ________.
A) cardiac muscle
B) smooth muscle
C) striated muscle
D) skeletal muscle

Question

Quizplus · Accepted Answer

Food moves along the digestive tract as the result of contractions by smooth muscle, which is found in the walls of the gastrointestinal tract. Contractions of smooth muscle are involuntary and occur in a rhythmic pattern called peristalsis. Cardiac muscle is found in the heart, striated muscle is found in skeletal muscles, and skeletal muscle is under voluntary control and is not involved in the movement of food through the digestive system.

Food Moves Along the Digestive Tract as the Result of Contractions