The layer that is responsible for the motility that propels food and residue through the digestive tract is called the __________.
A)lumen
B)muscularis externa
C)submucosa
D)mucosa (mucous membrane)
E)serosa

Question

Quizplus · Accepted Answer

The muscularis externa layer is responsible for the motility that propels food and residue through the digestive tract. The lumen refers to the inner space of the digestive tract, the submucosa contains blood vessels and nerves that support the mucosa, the mucosa is responsible for absorption and secretion, and the serosa is the outermost layer that provides protection and support.

The Layer That Is Responsible for the Motility That Propels