What is the colon?

The the colon is called the colon. Gray's Anatomy (1918) describes it as the main portion of the large intestine.

What it is

  • The main portion of the large intestine.
  • Divided into four parts: ascending, transverse, descending, and sigmoid.
  • Absorbs most of the water from the intestinal contents.

Where it is

  • Frames the coils of the small intestine.
  • Runs up the right side, across the top, and down the left side of the abdomen.
  • Ends at the rectum.

Source:

Last verified: 2026-07-18

  • Best Anatomy Answers is an educational reference about human anatomy. It is not medical advice — for any health concern, talk to a licensed medical professional.

View as .md