The large bowel obstruction may block the bowel completely or partially. The large intestine is the final section of the gastrointestinal tract that performs the vital task of absorbing water and vitamins while converting digested food into feces. The large intestine is larger in diameter than the small intestine. Learn how the large intestine does its icky, but important, job. Most sources define the large intestine as the combination of the cecum, colon, rectum, and anal canal. It is about 1.5 meters long. Colon cancer typically affects older adults, though it can happen at any age. Your large intestine is the last part of your digestive tract, and the part that is responsible for getting rid of waste. Large Intestine. Large Intestine Definition. Although shorter than the small intestine in length, the large intestine is considerably thicker in diameter, thus giving it its name. In an average adult, the large intestine is about 1.5m long and 5cm wide. This tubular structure is sometimes known as large bowel or colon. The colon is the final part of the digestive tract. It usually begins as small, noncancerous (benign) clumps of cells called polyps that form on the inside of the colon. It consists of the caecumappendixcolon and rectum. It is the site of completion of digestion and most absorption. large intestine meaning: 1. the lower part of the bowels in which water is removed from digested food before it is passed…. intestine: [noun] the tubular part of the digestive tract that extends from the stomach to the anus — compare large intestine, small intestine. Learn more. A blocked intestine may rupture, causing a … The large intestine is wider in diameter and hence allows the lucid movement of … The large intestine is shorter but wider than the small intestine. The colon is the largest portion of the large intestine, so many mentions of the large intestine and colon overlap in meaning whenever precision is not the focus. Cecum. The ileocaecal valve controls the entry of material from the last part of the small intestine called the ileum. Consists of the cecum, colon, rectum, and anal canal. An intestinal blockage can occur anywhere in the large intestine. The term colon is sometimes used to refer to the entire large intestine. Large intestine, posterior section of the intestine, consisting typically of four regions: the cecum, colon, rectum, and anus. The large intestine is the terminal portion of the gastrointestinal tract and is derived from the midgut the large intestine is composed of the same four histological layers of the alimentary canal. Some other sources exclude the anal canal. The proximal end of the large intestine where it joins with the small intestine at the ileocanal junction. It has three parts: Caecum- The caecum is situated at the junction of the small and large intestine (ileocaecal junction). It consists of some symbiotic microorganisms. 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