Which layer of the GI tract lubricates and protects the intestines by producing mucus?
A) Muscle layer
B) Middle layer
C) Inner layer
D) Outer layer

Question

Quizplus · Accepted Answer

The walls of the GI tract consist of 5 layers: the inner layer, the submucosal or middle layer, the submucosal connective tissue (lamina propria), muscle layers (longitudinal and circular), and peritoneum (outer layer). The inner layer of the GI tract lubricates and protects the intestines by producing mucus or goblet cells.

Which Layer of the GI Tract Lubricates and Protects the Intestines