The most important stimulus for contraction of the gallbladder is
A)CCK
B)mechanical contraction of the small intestine
C)sympathetic stimulation
D)an increase in bile secretion by the liver
E)bile salts

Question

Quizplus · Accepted Answer

The hormone cholecystokinin (CCK) is the most important stimulus for contraction of the gallbladder. CCK is released by the small intestine in response to the presence of fatty acids and amino acids after a meal, and it causes the gallbladder to contract and release bile into the duodenum for the digestion and absorption of fats.

The Most Important Stimulus for Contraction of the Gallbladder Is