Which of the following causes the release of fecal material?
A) Gastrocolic reflex
B) Defecation reflex
C) Duodenocolic reflex
D) Pyloric reflex

Question

Quizplus · Accepted Answer

The defecation reflex is a reflex that causes the release of fecal material. This reflex is initiated by the stretching of the rectum and sends a signal to the spinal cord, which then triggers the relaxation of the internal anal sphincter and contraction of the rectum and external anal sphincter, resulting in the expulsion of feces. The other options listed (gastrocolic reflex, duodenocolic reflex, and pyloric reflex) all relate to different aspects of digestion and do not directly cause the release of fecal material.

Which of the Following Causes the Release of Fecal Material