Which layer of the digestive tract is responsible for the peristaltic waves that propel materials from one portion to another?
A) muscularis externa
B) serosa
C) submucosa
D) mucosa

Question

Quizplus · Accepted Answer

The muscularis externa layer contains smooth muscle fibers that create peristaltic waves to move materials along the digestive tract. The other layers, including the serosa, submucosa, and mucosa, do not have a direct role in peristalsis.

Which Layer of the Digestive Tract Is Responsible for the Peristaltic