Final answer:
The segment of the large intestine between the descending colon and the rectum is known as the sigmoid colon. It is the S-shaped part that connects these two sections and plays a role in the formation and storage of feces before elimination.
Step-by-step explanation:
The part of the large intestine between the descending and the rectum is called the sigmoid colon. The large intestine is a critical part of the digestive system, primarily involved in absorbing water and salts from liquid food wastes and forming feces.
The colon is a major section of the large intestine that includes the cecum, ascending colon, transverse colon, descending colon, and the sigmoid colon. The sigmoid colon is the S-shaped segment that connects the descending colon to the rectum, which then leads to the anus, where feces are eliminated from the body.