Explain the Role of cholecystokinin
Pancreozymin (CCK-PZ): The presence of food in the upper small intestine also causes another hormone, CCK-PZ to be released. It is a polypeptide containing 33 amino acids, secreted from the intestinal mucosa. Presence of peptones, fats and also acids in the small intestine are stimuli for cholecystokinin - pancreozymin secretion. Cholecystokinin-pancreozymin acts on pancreas via blood. It causes secretion of large quantity of digestive enzymes. This type of secretion is called ecbolic secretion. Having gone through the discussion above, you would have got a fairly good idea about the digestive function of pancreas and the mechanism of pancreatic secretions.