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

Question

Quizplus · Accepted Answer

Smooth muscles are responsible for the involuntary contractions that propel food along the digestive tract. Cardiac and skeletal muscles are not involved in digestive contractions, and voluntary and striated muscles may play a role in chewing and swallowing but are not responsible for moving food through the rest of the digestive system.

Food Moves Along the Digestive Tract as the Result of Contractions