Secretin and cholecystokinin are secreted by

Ileum

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Oesophagus

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Duodenum

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Pyloric stomach

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Solution

The correct option is C Duodenum
Secretin is secreted by S cells in the duodenum and affects numerous other organs systems. Besides regulating the growth of the epithelial cells in the pancreas and biliary system, secretin additionally exerts trophic effects. Cholecystokinin is secreted in the duodenum and is responsible for stimulating the digestion of fat and protein.
So, option C is the correct option.

Suggest Corrections

Column - I	Column - II
(a) Secretin	(i) Stimulates gastric gland to release gastric juice
(b)Cholecystokinin	(ii) Stimulates gall bladder to release bile juice
(c) Gastrin	(iii) With coeffect of pancreozymin stimulates secretion pf pancreatic juice and intestinal juice
(d) Enterogastrone	(iv) Inhibits gastric juice secretion and stops stomach churning