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The small intestine or small bowel is an organ in the gastrointestinal tract where most of the absorption of nutrients from food takes place. It lies between the stomach and large intestine, and receives bile and pancreatic juice through the pancreatic duct to aid in digestion. The small intestine is about 5.5 metres (18 feet) long and folds ...
In human anatomy, the intestine (bowel or gut; Greek: éntera) is the segment of the gastrointestinal tract extending from the pyloric sphincter of the stomach to the anus and as in other mammals, consists of two segments: the small intestine and the large intestine. In humans, the small intestine is further subdivided into the duodenum ...
The large intestine is truly distinct only in tetrapods, in which it is almost always separated from the small intestine by an ileocaecal valve. In most vertebrates, however, it is a relatively short structure running directly to the anus, although noticeably wider than the small intestine.
The intestine is also called the bowel or the gut. The lower GI starts at the pyloric sphincter of the stomach and finishes at the anus. The small intestine is subdivided into the duodenum, the jejunum and the ileum. The cecum marks the division between the small and large intestine. The large intestine includes the rectum and anal canal. [2]
The small intestine is about 20 feet long and goes behind the large intestine, forming a mass of curly tubing. It is divided into three parts: the duodenum, jejunum, and the ileum. The duodenum receives excretions from various organs such as the pancreas and spleen. The pancreas produces the hormone insulin, which helps regulate blood sugar. [4 ...
The ileocecal valve [a] is a sphincter muscle valve that separates the small intestine and the large intestine. [1] Its critical function is to limit the reflux of colonic contents into the ileum. [2] Approximately two liters of fluid enters the colon daily through the ileocecal valve.
At 2 years old, Elizabeth Christensen is pretty darn talented. She explained in a YouTube video from the City of Plano, "These are the large intestines," and proceeded to tell us the name and ...
In the large intestines, villi are absent and a flat surface with thousands of glands is observed. Underlying the epithelium is the lamina propria, which contains myofibroblasts, blood vessels, nerves, and several different immune cells, and the muscularis mucosa which is a layer of smooth muscle that aids in the action of continued peristalsis ...
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