The hormone that contracts gall bladder to release bile
A
Gastrin
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B
Secretin
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C
Enterogastrone
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D
Cholecystokinin
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Solution
The correct option is A Cholecystokinin
The gall bladder is the muscular sac which has a capacity of 30-50 ml. The cells of the liver (hepatic cells) secrete bile and transport it to the gall bladder through hepatic ducts.
Bile is stored and concentrated in Gall bladder.
The ducts of the bile duct along with ducts of liver (hepatic ducts) form the common bile duct, through which bile is secreted into the duodenum along with the pancreatic duct, after the action of enzyme Cholecystokinin, from the small intestine, which causes the contraction of the gall bladder.