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Sagot :
True, Cholecystokinin(CCK), which is produced in the small intestine, inhibits gastric secretions in the stomach.
What is Cholecystokinin?
- Cholecystokinin is a peptide hormone of the gastrointestinal system responsible for stimulating the digestion of fat and protein.
- Cholecystokinin, officially called pancreozymin, is synthesized and secreted by enteroendocrine cells in the duodenum, the first segment of the small intestine.
- Its presence causes the release of digestive enzymes and bile from the pancreas and gallbladder, respectively, and also acts as a hunger suppressant.
- CCK is synthesized and released by enteroendocrine cells in the mucosal lining of the small intestine (mostly in the duodenum and jejunum), called I cells, neurons of the enteric nervous system, and neurons in the brain. It is released rapidly into the circulation in response to a meal.
- The greatest stimulator of CCK release is the presence of fatty acids and/or certain in the amino acids in the chyme entering the duodenum.
- In addition, release of CCK is stimulated by monitor peptide (released by pancreatic acinar cells), CCK-releasing protein (via paracrine signalling mediated by enterocytes in the gastric and intestinal mucosa), and acetylcholine (released by the parasympathetic nerve fibers of the vagus nerve).
- Once in the circulatory system, CCK has a relatively short half-life.
To learn more about Cholecystokinin: https://brainly.com/question/15451892
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