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gastrin, a peptide hornone is secreted in response to what action in the body?

gastrin, a peptide hornone is secreted in response to what action in the body?
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It is a regulatory molecule.it is neuropeptide hormone activity.regulates gastric acid secretion and enteric motor function.signaling for circadian oscillator in the suprachiasmatic nuclei of the hypothalamusit stimulates the release of histamine and parietal cell maturation and fundal growth.it secrete pepsinogen and zymogen ( inactive) from of the digestive enzyme Pepsi.promote stomach contraction and strengthens central contraction , relaxes the pylori sphincter.induce pancreatic secretions and empty the tall bladder and it contributes to the gastronomic reflex.

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