Question

Stomach role and digestive system role

Answer 1

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★ Stomach Role:

The main function of the stomach is to break down and digest food in order to extract necessary nutrients from what you have eaten. In order for this to happen, it is necessary that the stomach, the digestive glands and the intestines must produce various enzymes, including pepsin, and acid.

★ Digestive system Role:

Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, or both. Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed. Nerves and hormones help control the digestive process.

Answer 2

Answer:

The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.