What prevents the epithelial lining of the walls of the stomach of animals from being digested by the HCI secreted by it?
The stomach is a highly acidic environment, with the pH level reaching as low as 1.5-3.5, which is primarily due to the hydrochloric acid (HCl) secreted by the parietal cells of the gastric glands. The primary function of the stomach is to break down food into a more digestible form by mechanical and chemical digestion. However, the question arises, how does the stomach protect its epithelial lining from being digested by the _____ ____ ____ ____ _______ _____ ___ ______.
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