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[1] The four sections of the colon are: the ascending colon, transverse colon, descending colon, and sigmoid colon. These sections turn at the colic flexures. The parts of the colon are either intraperitoneal or behind it in the retroperitoneum.
The colon (large intestine or large bowel) is an organ of the digestive system that helps remove waste from the body. The colon is the last part of the digestive tract where water, salts, and vitamins are absorbed, and stool formation occurs.
colon, the longest segment of the large intestine. The term colon is often used to refer to the entire large intestine.