cholecystokinin(redirected from I cells)
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n. Abbr. CCK
A hormone produced principally by the small intestine in response to the presence of fats, causing contraction of the gallbladder, release of bile, and secretion of pancreatic digestive enzymes. Also called pancreozymin.
(Biochemistry) a hormone secreted by duodenal cells that stimulates the contraction of the gall bladder and secretion of pancreatic enzymes. Also called: pancreozymin
cho•le•cys•to•ki•nin(ˌkoʊ ləˌsɪs təˈkaɪ nɪn, ˌkɒl ə-)
a hormone secreted by the upper intestine that stimulates contraction of the gallbladder and increases secretion of pancreatic juice. Abbr.: CCK
A hormone that causes the gallbladder to contract and so release bile into the duodenum.
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|Noun||1.||cholecystokinin - a gastrointestinal hormone that stimulates the secretion of pancreatic enzymes and the contraction and emptying of the gall bladder; its release is stimulated by the presence of fatty acids and amino acids in the small intestine|