Hydrochloric acid creates an acidic environment facilitating pepsin action. Mucus protects the stomach lining by forming a barrier against the corrosive effects of the acid. This information is related to complaints about ‘acidity’ in adults.
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Gastric glands in the stomach release hydrochloric acid, the protein-digesting enzyme pepsin, and mucus. These substances contribute to the breakdown of food and protect the stomach lining.
Peristaltic movements are vital for the regulated movement of food along the digestive tube. Digestion in the stomach begins after the food is transported from the mouth through the food-pipe or esophagus.
The mouth “waters” when we eat something pleasant because it secretes saliva, a fluid that aids in the digestion and processing of food in the mouth.
Saliva, secreted by salivary glands, plays a role in wetting and processing food. It contains an enzyme called salivary amylase, which breaks down complex starch molecules into simple sugars.