Colon Anatomy | oncotest
Colon Cancer
Colon Cancer

Colon Anatomy


The colon constitutes part of the digestive system, along with the esophagus, the stomach and the small intestine. The colon, which is also known as the large intestine, absorbs water from digested food and removes waste from the body. The beneficial bacteria in the colon produce vitamins and help prevent the growth of harmful bacteria.

The cecum is connected to the ileum and is the first part of the colon.

The ascending colon ascends on the right side of the body from the cecum.

The transverse colon passes across the abdomen just under the stomach.

The descending colon descends on the left side of the body.

The sigmoid colon is a short segment of the colon that describes an S shape, located just before the rectum.

The rectum is the last segment of the colon.

The anus is an opening that is located at the end of the digestive system through which waste material is expelled.

The blood vessels supply oxygen and nutrients to the colon tissues.

Lymph nodes are part of the lymphatic system. The lymphatic system, which constitutes an important part of the immune system, drains and filters fluids from the cells.

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