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Multiple Choice
Which of the following is a digestive hormone that causes the gallbladder to release stored bile?
A
Gastrin
B
Insulin
C
Secretin
D
Cholecystokinin (CCK)
Verified step by step guidance
1
Understand the role of the gallbladder in digestion: The gallbladder stores bile produced by the liver, which is essential for the digestion and absorption of fats.
Identify the function of digestive hormones: Digestive hormones regulate various processes in the digestive system, including enzyme secretion, bile release, and motility.
Recognize the role of Cholecystokinin (CCK): CCK is a hormone released by the small intestine in response to the presence of fats and proteins. It stimulates the gallbladder to contract and release stored bile into the small intestine.
Differentiate between the listed hormones: Gastrin primarily stimulates gastric acid secretion, insulin regulates blood glucose levels, and secretin stimulates the pancreas to release bicarbonate. None of these directly cause bile release from the gallbladder.
Conclude that Cholecystokinin (CCK) is the hormone responsible for causing the gallbladder to release stored bile, aiding in the digestion of fats.