Question

What is the role of stomach in the digestion process?

Answer 1

The stomach is a J-shaped bag-like structure made of muscles; it stores and mixes the food received from the food pipe with the help of gastric juice. The digestive juices secreted by the inner walls of the stomach are as follows:
1. Mucus: It guards the lining of the stomach.
2. Hydrochloric acid: It kills microorganisms and creates an acidic medium.
3. Gastric juice: It is secreted by the gastric glands in the stomach and contains the enzyme pepsin, which breaks down proteins into simpler forms.

The semi-digested food remains in the stomach for one to four hours before it enters the small intestine.