What is the main stimulus for bile secretion from the gallbladder?
A)cholecystokinin
B)vagal stimulation
C)secretin
D)large amounts of protein in the chyme

Question

Quizplus · Accepted Answer

Bile secretion from the gallbladder is mainly stimulated by the hormone cholecystokinin (CCK), which is released from the duodenum in response to the presence of fat and protein in the chyme. CCK acts on the gallbladder to stimulate contraction and release of bile into the duodenum to aid in the digestion and absorption of fats. Vagal stimulation and secretin can also contribute to bile secretion, but their roles are secondary to CCK. Large amounts of protein in the chyme do not directly stimulate bile secretion from the gallbladder.

What Is the Main Stimulus for Bile Secretion from the Gallbladder