What are the functions of stomach?

Functions of stomach
(i) The muscular walls of the stomach help in mixing the food thoroughly with more digestive juices.
(ii) The contraction of muscular walls also cause to break down comparative large food pieces into smaller pieces to expose larger surface of food for the action of gastric enzymes.
(iii) The exit of food from the stomach is regulated by a sphincter muscle which releases it in a small amounts into the small intestine for proper digestion.
(iv) Gastric glands present in the wall of the stomach release hydrochloric acid, pepsin enzyme and mucus.
(a) Hydrochloric acid kills bacteria and also makes the medium acidic for the action of pepsin enzyme.(b) Pepsin enzyme help in digesting proteins.(c) Mucous protects the inner lining of the stomach from the action of the HCl acid under normal conditions.