Cholecystokinin

**Definition:** A peptide, of about 33 amino acids, secreted by the upper INTESTINAL MUCOSA and also found in the central nervous system. It causes gallbladder contraction, release of pancreatic exocrine (or digestive) enzymes, and affects other gastrointestinal functions. Cholecystokinin may be the mediator of satiety.

**Tree numbers:** - D06.472.317.152 - D12.644.120

**Synonyms:** - Pancreozymin - Uropancreozymin