Explanation

Your stomach is a stretchy bag of muscle that is very important in digesting food. It is part of your gastrointestinal system. When you have chewed and swallowed your food, your stomach mixes and churns it like a blender, then adds stomach acid and enzymes, which speed digestion up.

The lining of your stomach is covered with mucous, to protect it from gastric acid, which could be harmful.

The acid helps to break down your food into smaller parts that are more easily digested in the next part of your gastrointestinal system - your small intestine.