The main inorganic component of gastric juice is hydrochloric acid which performs a number of functions:
1) promotes denaturation and swelling of proteins in the stomach, which facilitates their subsequent cleavage with pepsins;
2) activates pepsinogens and turns them into pepsins;
3) creates an acidic environment necessary for the action of enzymes of gastric juice;
4) provides the antibacterial effect of gastric juice;
5) contributes to the normal evacuation of food from the stomach (opening of the pyloric sphincter from the stomach and closing from the 12th duodenal ulcer);
6) stimulates pancreatic secretion;
7) kills harmful microorganisms.
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