Cholecystokinin (CCK), is a peptide hormone secreted by neuroendocrine cells of the duodenal mucosa . It causes the gall bladder to contract (pump) and the liver to release bile.
Work Step by Step
Bile is synthesized in the liver and stored in the gall bladder. The pancreas synthesizes pancreatic enzymes--amylase, lipase, trypsin and chymotrypsin.