The gastric glands are tube-like, branched structures present at the inner lining of the stomach. They are the basic secretory unit of the stomach and are composed of various cell components that perform specific functions.
The function of these enzymes are as follows:
(a) Production of pepsin enzyme that digests proteins.
(b) Secretion of mucus for the protection of the inner lining of the stomach.
(c) Secretion of HCl, which kills the bacteria and foreign harmful organisms in the food.