The hormone primarily responsible for contraction of the gallbladder and release of bile into the duodenum is ____.

Question

Quizplus · Accepted Answer

Cholecystokinin (CCK) is the hormone primarily responsible for contraction of the gallbladder and release of bile into the duodenum. CCK is released from the small intestine in response to the presence of food, particularly fatty acids and amino acids. It stimulates the contraction of smooth muscles in the gallbladder and relaxes the sphincter of Oddi, allowing bile to flow into the duodenum.

The Hormone Primarily Responsible for Contraction of the Gallbladder and Release