{"id":99,"date":"2015-09-28T22:54:12","date_gmt":"2015-09-28T22:54:12","guid":{"rendered":"https:\/\/courses.candelalearning.com\/nutritionxmaster\/?post_type=chapter&p=99"},"modified":"2016-01-07T16:23:05","modified_gmt":"2016-01-07T16:23:05","slug":"large-intestine","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/pierce-nutrition\/chapter\/large-intestine\/","title":{"raw":"Large Intestine","rendered":"Large Intestine"},"content":{"raw":"Chyme passes from the stomach to the small intestine where most nutrients are absorbed. After passing through the small intestine, the\u00a0remaining chyme\u00a0enters\u00a0the large intestine. The large intestine is responsible for absorbing remaining water and electrolytes (sodium, potassium, and chloride). It also forms and excretes feces.\r\n\r\n[caption id=\"attachment_385\" align=\"aligncenter\" width=\"300\"]\"An<\/a> The large intestine includes the colon, the rectum, and the anus.[\/caption]\r\n\r\nThe large intestine consists of the colon, the rectum, and the anus. The colon can be further divided into the cecum (hence the -cecal in ileocecal valve, ileo- refers to ileum), ascending colon, transverse colon, descending colon, and sigmoid colon.\r\n\r\nDigestion continues\u00a0when chyme moves from the ileum into the cecum. Peristalsis in the ileum forces chyme into the cecum.\u00a0 Once the chyme enters the cecum, colon movements begin.\r\n

Mechanical Digestion<\/h2>\r\n

Mechanical digestion in the large intestine includes a combination of three types of movements. The presence of food residues in the colon stimulates a slow-moving, sluggish\u00a0contraction which pushes the material into the ascending colon.\u00a0 These movements also\u00a0churn the food residue which helps the large intestine absorb water.\u00a0 The removal of water from the chyme is the process that causes the formation of feces.<\/p>\r\nThe second type of movement is peristalsis which is the method of moving material throughout the entire digestive system.\u00a0 The following animation shows peristaltic movement in the large intestine.\r\n\r\nhttps:\/\/youtu.be\/Ujr0UAbyPS4\r\n\r\n \r\n\r\nThe third type is a mass movement. These strong waves start midway through the transverse colon and quickly force the contents (the feces) toward the rectum. Mass movements usually occur three or four times per day either while one eats or immediately afterward.\r\n\r\nFood residue leaving the colon enters the rectum and passes to the anal canal. The anal canal opens to the exterior body at the anus where defecation occurs.\r\n\r\n

\r\n

\u00a0<\/span><\/h3>\r\n<\/section>","rendered":"

Chyme passes from the stomach to the small intestine where most nutrients are absorbed. After passing through the small intestine, the\u00a0remaining chyme\u00a0enters\u00a0the large intestine. The large intestine is responsible for absorbing remaining water and electrolytes (sodium, potassium, and chloride). It also forms and excretes feces.<\/p>\n

\"An<\/a><\/p>\n

The large intestine includes the colon, the rectum, and the anus.<\/p>\n<\/div>\n

The large intestine consists of the colon, the rectum, and the anus. The colon can be further divided into the cecum (hence the -cecal in ileocecal valve, ileo- refers to ileum), ascending colon, transverse colon, descending colon, and sigmoid colon.<\/p>\n

Digestion continues\u00a0when chyme moves from the ileum into the cecum. Peristalsis in the ileum forces chyme into the cecum.\u00a0 Once the chyme enters the cecum, colon movements begin.<\/p>\n

Mechanical Digestion<\/h2>\n

Mechanical digestion in the large intestine includes a combination of three types of movements. The presence of food residues in the colon stimulates a slow-moving, sluggish\u00a0contraction which pushes the material into the ascending colon.\u00a0 These movements also\u00a0churn the food residue which helps the large intestine absorb water.\u00a0 The removal of water from the chyme is the process that causes the formation of feces.<\/p>\n

The second type of movement is peristalsis which is the method of moving material throughout the entire digestive system.\u00a0 The following animation shows peristaltic movement in the large intestine.<\/p>\n