The contraction of the gallbladder is caused | vedclass

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(C) The contraction of the gallbladder and the relaxation of the sphincter of Oddi are primarily stimulated by the hormone $Cholecystokinin$ $(CCK)$.$

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Cholecystokinin

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(C) The contraction of the gallbladder and the relaxation of the sphincter of Oddi are primarily stimulated by the hormone $Cholecystokinin$ $(CCK)$.$CCK$ is secreted by the $I$-cells in the mucosal epithelium of the small intestine in response to the presence of fats and proteins in the chyme.Once released into the bloodstream, it travels to the gallbladder, triggering its contraction to release bile into the duodenum to aid in fat digestion.

The contraction of the gallbladder is caused by .......

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