Defecation is stimulated by __________.
A) the chemical composition of the feces
B) bacterial flora in the feces
C) water content of the feces
D) lipid content in the feces
E) stretching of the rectum

Question

Quizplus · Accepted Answer

Defecation is stimulated by the stretching of the rectum, which triggers the defecation reflex. As feces accumulates in the rectum, it stretches the walls of the rectum, leading to the urge to defecate. This stimulates the muscles of the colon and rectum to contract, pushing the feces towards the anus.

Defecation Is Stimulated by __________