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The colon is the the large intestine. It has four sections. The first section is called the ascending colon. It extends upward on the right side of the abdomen.
The second section is called the transverse colon since it goes across the body to the left side.
There it joins the third section, the descending colon, which continues downward on the left side.
The fourth section is known as the sigmoid colon because of its S-shape.
The sigmoid colon joins the rectum, which, in turn, joins the anus, or the opening where waste matter passes out of the body. |