AP BIOLOGY

Detailed explanation-1: -The two are demarcated at the splenic flexure. The descending colon is a retroperitoneal organ and related to paracolic gutters on either side. It terminates into the sigmoid colon, which is the fifth part of the large intestine. The sigmoid colon links the descending colon to the rectum.

Detailed explanation-2: -The large bowel [large intestine or the colon] is part of the digestive system. It runs from the small intestine to the rectum. It is made up of three portions; the ascending, transverse and descending colon.

Detailed explanation-3: -What to know about the descending colon. The descending colon is a section of the large intestine. It is the left part of the colon that passes downward. It is responsible for storing the remains of digested food before they pass through the rest of the colon and rectum for elimination.

Detailed explanation-4: -The long, tube-like organ that is connected to the small intestine at one end and the anus at the other. The large intestine has four parts: cecum, colon, rectum, and anal canal. Partly digested food moves through the cecum into the colon, where water and some nutrients and electrolytes are removed.