The intestines are a long, continuous tube running from the stomach to the anus. Most absorption of nutrients and water happen in the intestines. The intestines include the small intestine, large intestine, and rectum. Show The small intestine (small bowel) is about 20 feet long and about an inch in diameter. Its job is to absorb most of the nutrients from what we eat and drink. Velvety tissue lines the small intestine, which is divided into the duodenum, jejunum, and ileum. The large intestine (colon or large bowel) is about 5 feet long and about 3 inches in diameter. The colon absorbs water from wastes, creating stool. As stool enters the rectum, nerves there create the urge to defecate. Intestine Conditions
SOURCES https://books.google.com/books?id=sOrK6q5ith4C&pg=PA5&lpg=PA5&dq=diameter+of+the+lumen+of+the+intestines&source=bl&ots=-UcZRv0XvX&sig=VhBWzNv9XI8bKKl0pjn0QZo-VH0&hl=en&ei=uvZLSo-DNeDJtgep7vWqDQ&sa=X&oi=book_result&ct=result&resnum=4 Herliner, H., Maglinte, D., Birnbaum, B., and Balthazar, E. Clinical Imaging of the Small Intestine, Springer, Nov. 30, 2001. The Physics Factbook web site: "Length of a Human Intestine." Dummies.com: "Running Through the Human Digestive System." National Cancer Institute: "Small Intestine Cancer," "Colon and Rectal Cancer." National Digestive Diseases Information Clearinghouse: "Celiac Disease," "Colonoscopy," "Flexible Sigmoidoscopy," "Diverticulosis and Diverticulitis." What does your large intestine do?The large intestine is the portion of the digestive system most responsible for absorption of water from the indigestible residue of food. The ileocecal valve of the ileum (small intestine) passes material into the large intestine at the cecum.
What are the functions of small and large intestine?Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients. Large intestine. In your large intestine, more water moves from your GI tract into your bloodstream.
What are the functions of the small intestine?The small intestine has three parts: the duodenum, jejunum, and ileum. It helps to further digest food coming from the stomach. It absorbs nutrients (vitamins, minerals, carbohydrates, fats, proteins) and water from food so they can be used by the body. The small intestine is part of the digestive system.
What is the difference between the large and small intestines?The small intestine is involved in the digestion of food and absorption of nutrients. The large intestine is involved in the absorption of water and in the production of vitamins.
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