A gastrointestinal hormone produced in the duodenum in response to the ingestion of fats and other food substances.
It stimulates the release of bile from the gallbladder and digestive enzymes from the pancreas, thus facilitating the digestive process.
The hormone (see HORMONES) released from the lining membrane of the DUODENUM when food is taken, and which initiates emptying of the gall-bladder (see LIVER).
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.
A group of hormones released from specialized cells in the stomach, pancreas, and intestine that control various functions of the digestive organs. Gastrin, secretin, and cholecystokinin are the best known of these hormones.... gastrointestinal hormones
a pear-shaped sac (7–10 cm long), lying underneath the right lobe of the liver, in which *bile is stored (see illustration overleaf). Bile passes (via the common hepatic duct) to the gall bladder from the liver, where it is formed, and is released into the duodenum (through the common bile duct) under the influence of the hormone *cholecystokinin, which is secreted when food is present in the duodenum. The gall bladder is a common site of stone formation (see gallstone).... gall bladder
the digestive juice secreted by the *pancreas. Its production is stimulated by hormones secreted by the duodenum, which in turn is stimulated by contact with food from the stomach. If the duodenum produces the hormone *secretin the pancreatic juice contains a large amount of sodium bicarbonate, which neutralizes the acidity of the stomach contents. Another hormone (see cholecystokinin) stimulates the production of a juice rich in digestive enzymes, including trypsinogen and chymotrypsinogen (which are converted to *trypsin and *chymotrypsin in the duodenum), *amylase, *lipase, and *maltase.... pancreatic juice