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The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus , stomach , and intestines .
The lower gastrointestinal tract (GI), includes the small intestine and all of the large intestine. [29] 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 ...
The Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) is a 501c6 non-profit professional organization providing education on gastrointestinal minimally invasive surgery. It describes itself thus: [ 1 ] The mission of the Society of American Gastrointestinal and Endoscopic Surgeons is to innovate, educate and collaborate to ...
Gastrointestinal Endoscopy is a monthly peer-reviewed medical journal covering gastroenterology, especially as relating to endoscopy. It is published by Elsevier and the official publication of the American Society for Gastrointestinal Endoscopy. The editor-in-chief is Douglas G. Adler, MD, FASGE.
Layers of the Alimentary Canal.The wall of the alimentary canal has four basic tissue layers: the mucosa, submucosa, muscularis, and serosa. The enteric nervous system in humans consists of some 500 million neurons [11] (including the various types of Dogiel cells), [1] [12] 0.5% of the number of neurons in the brain, five times as many as the one hundred million neurons in the human spinal ...
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