cholecystokinin

cholecystokinin
A polypeptide hormone (the human peptide has 33 residues) liberated by the upper intestinal mucosa on contact with gastric contents; stimulates contraction of the gallbladder and secretion of pancreatic juice. SEE ALSO: sincalide. SYN: pancreozymin.

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cho·le·cys·to·ki·nin -.sis-tə-'kī-nən n a hormone secreted esp. by the duodenal mucosa that regulates the emptying of the gallbladder and secretion of enzymes by the pancreas and that has been found in the brain called also cholecystokinin-pancreozymin, pancreozymin

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n.
a hormone secreted by the cells of the duodenum in response to the presence of partly digested food in the duodenum. It causes contraction of the gall bladder and expulsion of bile into the intestine and stimulates the production of digestive enzymes by the pancreas (see also pancreatic juice). In the brain cholecystokinin functions as a neurotransmitter, involved in the control of satiety.

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cho·le·cys·to·ki·nin (CCK) (ko″lə-sis″to-kiґnin) [cholecysto- + kinin] a polypeptide hormone secreted by the mucosa of the upper intestine and by the hypothalamus. It stimulates contraction of the gallbladder (with release of bile) and secretion of pancreatic enzymes; hypothalamic cholecystokinin is a neurotransmitter. Called also pancreozymin.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Cholecystokinin — Masse/Länge Primärstruktur 58 aa; 33 aa; 22 aa; 8 aa …   Deutsch Wikipedia

  • cholecystokinin — [käl΄əsis΄tə kī′nin] n. a polypeptide hormone secreted by the upper intestinal lining, that activates the gallbladder and pancreas: its presence in the brain is associated with loss of appetite …   English World dictionary

  • Cholecystokinin — For other uses of CCK , see CCK (disambiguation). Cholecystokinin Identifiers Symbols CCK; MGC117187 External IDs …   Wikipedia

  • cholecystokinin — noun Etymology: New Latin cholecystis + English o + kinin Date: circa 1929 a hormone secreted especially by the duodenal mucosa that regulates the emptying of the gallbladder and secretion of enzymes by the pancreas and that has been found in the …   New Collegiate Dictionary

  • cholecystokinin — n. a hormone secreted by the cells of the duodenum in response to the presence of partly digested food in the duodenum. It causes contraction of the gall bladder and expulsion of bile into the intestine and stimulates the production of digestive… …   The new mediacal dictionary

  • cholecystokinin — cholecistokininas statusas T sritis chemija apibrėžtis Peptidinis virškinamojo trakto hormonas. atitikmenys: angl. cholecystokinin rus. холецистокинин …   Chemijos terminų aiškinamasis žodynas

  • Cholecystokinin A receptor — PDB rendering based on 1d6g …   Wikipedia

  • Cholecystokinin B receptor — NMR structure of the third extracellular loop of the human CCK B receptor. PDB rendering based on 1l4t …   Wikipedia

  • Cholecystokinin receptor — cholecystokinin A receptor Identifiers Symbol CCKAR Entrez 886 HUGO …   Wikipedia

  • Cholecystokinin (CCK) — ⇒ Pankreozymin …   Deutsch wörterbuch der biologie

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