What is the function of the hormone Gastrin?

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(A) Gastrin is a peptide hormone primarily secreted by $G$-cells located in the pyloric antrum of the stomach. When food enters the stomach,the presen

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Stimulates the secretion of hydrochloric acid and pepsinogen.

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(A) Gastrin is a peptide hormone primarily secreted by $G$-cells located in the pyloric antrum of the stomach. When food enters the stomach,the presence of peptides and amino acids,along with stomach distension,triggers the release of Gastrin into the bloodstream. Gastrin then travels to the gastric glands and stimulates the parietal cells to secrete hydrochloric acid $(HCl)$ and the chief cells to secrete pepsinogen. This process is essential for the initiation of protein digestion in the stomach.

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