differentiate between Colon and rectum (function).
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Answer:
Colon
The colon is the longest part of the large intestine. It receives almost completely digested food from the cecum, absorbs water and nutrients, and passes waste (stool or feces) to the rectum. The colon is divided into 4 parts:
The ascending colon is the start of the colon. It is on the right side of the abdomen. It continues upward to a bend in the colon called the hepatic flexure.
The transverse colon follows the ascending colon and hepatic flexure. It lies across the upper part of the abdomen. It ends with a bend in the colon called the splenic flexure.
The descending colon follows the transverse colon and splenic flexure. It is on the left side of the abdomen.
The sigmoid colon is the last part of the colon and connects to the rectum.
The proximal colon is the ascending colon and the transverse colon together. The distal colon is the descending colon and the sigmoid colon together.
Rectum
The rectum is the lower part of the large intestine that connects to the sigmoid colon. It is about 15 cm (6 in) long. It receives waste from the colon and stores it until it passes out of the body through the anus.