What is the function of CCK?

Cholecystokinin (CCK) is a hormone produced by the cells in the small intestine that plays a crucial role in digestion. It stimulates the release of digestive enzymes from the pancreas and promotes the contraction of the gallbladder, leading to the release of bile into the intestine. Additionally, CCK is involved in regulating appetite by signaling satiety to the brain, which helps control food intake.