Mucus secreted by gastric glands forms a protective layer over the stomach lining, preventing damage from the acidic environment and digestive enzymes present in the stomach.
How does mucus protect the inner lining of the stomach from the effects of hydrochloric acid?
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Mucus protects the inner lining of the stomach from the effects of hydrochloric acid by forming a thick and viscous barrier. The stomach lining contains specialized cells called mucous cells that secrete mucus. Mucus serves as a physical barrier, coating the stomach epithelium and preventing direct contact between hydrochloric acid and the delicate tissues. Additionally, mucus contains bicarbonate ions, which act as a buffer, neutralizing any acid that penetrates the mucus layer. This protective mechanism prevents the stomach lining from being damaged by the acidic environment, ensuring the integrity of the gastric mucosa despite the presence of potent digestive acids.