THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Cholecystokinin has several functions at this stage of the digestive process: It stimulates your gallbladder to contract and release bile into your small intestine. (“Cholecystokinin” means to “move the gallbladder.") It stimulates your pancreas to release pancreatic enzymes.

Detailed explanation-2: -Increased blood levels of cholecystokinin can be found 15 minutes after a meal has begun and levels remain raised for three hours afterwards. The release of cholecystokinin is blocked by the hormone somatostatin and by bile acids in the small intestine.

Detailed explanation-3: -Secretin stimulates the flow of bile from the liver to the gallbladder. CCK stimulates the gallbladder to contract, causing bile to be secreted into the duodenum, as shown below.

Detailed explanation-4: -Cholecystokinin (CCK) CCK is the major hormonal regulator of gallbladder contraction. Coincident with this effect, CCK also relaxes the sphincter of Oddi, which also promotes bile secretion into the intestine. In humans, the predominant CCK receptor type in the pancreas is CCK-B.