Which layer in the vertebrate gut can constrict the gut lumen?
A) Circular muscle layer
B) Mucosal layer
C) Submucosal layer
D) Longitudinal muscle layer
E) Peritoneal layer

Question

Quizplus · Accepted Answer

The circular muscle layer in the vertebrate gut can constrict the gut lumen. This layer is responsible for peristalsis, which is the rhythmic contraction and relaxation of the gut muscles that propels food forward. When this layer contracts, it constricts the lumen of the gut, aiding in the mechanical breakdown of food and pushing it down the digestive tract.

Which Layer in the Vertebrate Gut Can Constrict the Gut