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The digestive system functions to move material through the GI tract via peristalsis, break down that material via digestion, absorb nutrients for use throughout the body, and remove waste from the body via defecation. [3] Physicians who specialize in the medical specialty of gastroenterology are called gastroenterologists or sometimes GI doctors.
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 ...
[5]: 850–862 The normal thickness of the small intestinal wall is 3–5 mm, [8] and 1–5 mm in the large intestine. [9] Focal, irregular and asymmetrical gastrointestinal wall thickening on CT scan suggests a malignancy. [9] Segmental or diffuse gastrointestinal wall thickening is most often due to ischemic, inflammatory or infectious ...
GI Gastrointestinal: GIB Gastrointestinal bleeding: GN Glossopharyngeal neuralgia: GORD Gastro-oesophageal reflux disease: GSS disease Gerstmann–Sträussler–Scheinker disease: GT/LD Gifted and learning disabled: GVHD Graft-versus-host disease: GWD Guinea worm disease
[5] Immunodysregulation polyendocrinopathy and enteropathy, X-linked (IPEX syndrome, see FOXP3) Protein losing enteropathy [6] Radiation enteropathy [7] Chronic enteropathy associated with SLCO2A1 gene; If the condition also involves the stomach, it is known as "gastroenteropathy". In pigs, porcine proliferative enteropathy is a diarrheal ...
An upper GI bleed is more common than lower GI bleed. [2] An upper GI bleed occurs in 50 to 150 per 100,000 adults per year. [8] A lower GI bleed is estimated to occur in 20 to 30 per 100,000 per year. [2] It results in about 300,000 hospital admissions a year in the United States. [1] Risk of death from a GI bleed is between 5% and 30%.
Sortable table Abbreviation Meaning G: gravidity (total number of pregnancies, successful or not) guanosine: G6PD: glucose-6-phosphate-dehydrogenase: GA: general anaesthesia ...