CCK is secreted by

pyloric part of stomach

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caecum

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duodenum

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rectum

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Solution

The correct option is C duodenum
CCK (Cholecystokinin) is secreted by duodenal mucosa.

It stimulates flow of pancreatic enzymes and contraction of gall bladder.

Suggest Corrections

Column I	Column II
I. Gastrin	$1$ . Gall bladder contraction
II. CCK	$2$ . Increased HCl secretion
III. Secretin	$3$ . Bicarbonate secretion from the pancreas
IV. GIP	$4$ . Insulin secretion.