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Encyclopedia > Gastric juice

Gastric juice is a strong acidic liquid, pH 1 to 3, which is close to being colourless. The hormone gastrin is released into the bloodstream when peptides are detected in the stomach. This causes gastric glands in the lining of the stomach to secrete gastric juice. Its main components are digestive enzymes pepsin and rennin, hydrochloric acid, and mucus. Acidity redirects here. ... The correct title of this article is . ... In humans, gastrin is a hormone that stimulates secretion of gastric acid by the stomach. ... Peptides are the family of molecules formed from the linking, in a defined order, of various amino acids. ... In anatomy, the stomach is a bean-shaped hollow muscular organ of the gastrointestinal tract involved in the second phase of digestion, following mastication. ... Pepsin is a digestive protease (EC 3. ... Rennet, also called rennin or chymosin (EC 3. ... The chemical compound hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride gas (HCl). ... Mucus is a slippery secretion of the lining of various membranes in the body (mucous membranes). ...


See also

Gastric acid is, together with several enzymes and the intrinsic factor, one of the main secretions of the stomach. ...

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  Results from FactBites:
 
Orthotrophy: Chapter XVIII (6006 words)
The secretion of gastric juice is in response to the higher centers, as these are set in motion by the taste and odor of food, and is poured into the stomach in advance of the food.
The acidity of gastric juice is determined by the food eaten, by the length of time that has elapsed since the food was consumed, and by the familiarity or unfamiliarity of the system with the food.
This juice, the secretion of which is excited by the action of the acid contents received from the stomach upon the walls of the intestine, is poured out about the time the contents of the stomach pass through he pyloric valve.
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