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The colon and rectum are part of the digestive tract. The digestive tract is a hollow tube that begins at the mouth and ends at the anus. It has several parts including the esophagus, stomach, small intestine, colon, and rectum (the colon and rectum make up the large intestine).  | | Figure 8. Anatomy of the colon;B,anatomy of the rectum. |
The intestine is about 28 feet long. The last 5–6 feet of the intestine is called the colon or large intestine. This structure has six major divisions: cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum. The last 5 or 6 inches of the large intestine is the rectum. The purpose of the digestive system is to remove nutrients (minerals, vitamins, carbohydrates, proteins, fats, and water) from the foods we eat and to store the waste. After food is digested, solid wastes move through the colon and rectum to the anus, where they are passed out of the body.
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