The lower part of the large intestine where feces are stored is called what?

The lower part of the large intestine where feces are stored is called what?

• A. Rectum
• B. Cecum
• C. Appendix
• D. Anus

Answer: (A)

The main idea is that feces are stored in the rectum, the final straight section of the large intestine just before the anal canal. The rectum acts as a temporary reservoir, letting stool accumulate until a bowel movement is convenient. When the rectal walls stretch from the filling feces, stretch receptors trigger the urge to defecate and coordinate with the anal sphincters to control release. The other structures have different roles: the cecum is the first section of the large intestine where chyme mixes and water absorption continues, the appendix is a small pouch attached to the cecum with no storage function, and the anus is the opening through which stool exits, not a storage site.

The main idea is that feces are stored in the rectum, the final straight section of the large intestine just before the anal canal. The rectum acts as a temporary reservoir, letting stool accumulate until a bowel movement is convenient. When the rectal walls stretch from the filling feces, stretch receptors trigger the urge to defecate and coordinate with the anal sphincters to control release. The other structures have different roles: the cecum is the first section of the large intestine where chyme mixes and water absorption continues, the appendix is a small pouch attached to the cecum with no storage function, and the anus is the opening through which stool exits, not a storage site.