Question

In stomach mucosal epithelium is protected from excoriation by concentrated hcl

Answer 1

    The mucus secreted by the goblet cells along with the bicarbonates from the pancreas -play an important role in lubrication and protection of the mucosal epithelium from excoriation by the highly concentrated hydrochloric acid. 

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Answer 2

Answer:

In stomach, epithelium is protected from excoriation by concentrated hcl due to the presence of mucus secretion covering the epithelium

Explanation:

• Gastric glands are found in the mucosa of the stomach.
• Mucous neck cells, which release mucus to protect the stomach wall from acidity, are one of three types of cells found in gastric glands.
• Peptic or chief cells release pepsinogen, a proenzyme that is activated in the presence of acidic conditions and converts to pepsin for protein breakdown.
• HCl and intrinsic factor (a substance required for vitamin B 12 absorption) are secreted by parietal or oxyntic cells.
• The mucus and bicarbonates in the gastric juice help to lubricate and prevent the mucosal epithelium from being excoriated by the very concentrated hydrochloric acid.

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