Large intestine

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The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the digestive system in tetrapods. Water and salts are absorbed here and the remaining waste material is stored in the rectum as feces before being removed by defecation. Although it is shorter than the small intestine, it is called the large intestine because it is wider in diameter. In humans, the large intestine begins in the right iliac region of the pelvis, just at or below the waist, where it is joined to the end of the small intestine at the cecum, via the ileocecal valve.It then continues as the colon ascending the abdomen, across the width of the abdominal cavity as the transverse colon, and then descending to the rectum and its endpoint at the anal canal. Overall, in humans, the large intestine is about 1.5 metres (5 ft) long, which is about one-fifth of the whole length of the human gastrointestinal tract. In human medicine, the terms "large intestine" and "colon" are often...

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