What are the functions of gastric glands present in the wall of the stomach?

Explanation

The stomach wall contains three tubular glands (gastric glands) that secrete gastric juice. The gastric juice contains
(a) Hydrochloric acid makes the medium acidic so that enzyme pepsin because active. HCl kills bacteria that may enter the stomach us the food.
(b) Mucus helps to protect stomach wall from its own secretions HCl.
(c ) Enzyme pepsin begins the digestion of proteins present in food to form smaller molecules.