Which hormone stimulates the stomach to secrete gastric juice?
A
Gastrin
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B
Parathormone
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C
Thyroxin
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D
Insulin
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Solution
The correct option is A Gastrin Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by gastric cells in the pyloric antrum of the stomach, duodenum, and the pancreas. Gastrin is directly responsible for the release of gastric acid, which breaks down the proteins in the food you eat.