Which structure of the vertebrate gut is most responsible for peristalsis?
A) Circular and longitudinal muscle layers
B) Mucosal layer
C) Submucosal layer
D) Peritoneum
E) Lumen

Question

Quizplus · Accepted Answer

Circular and longitudinal muscle layers are responsible for peristalsis, which is the coordinated contraction and relaxation of muscles that propels food along the digestion system. The mucosal layer, submucosal layer, peritoneum, and lumen are important structures in the gut but not directly involved in peristalsis.

Which Structure of the Vertebrate Gut Is Most Responsible for Peristalsis