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Secretin and cholecystokinin are digestive hormones. They are secreted in:

1. Pyloric stomach
2. Duodenum
3. Ileum
4. Oesophagus

Correct answer: Duodenum

Solution

Secretin and cholecystokinin are produced by cells in the duodenal mucosa. They help coordinate digestion by responding to acidic chyme and fats/proteins entering the duodenum.

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