Identify the cells whose secretion protects the lining of gastro-intestinal tract from various enzymes:

Duodenal cells

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Oxyntic cells

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Chief cells

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Goblet cells

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Solution

The correct option is D Goblet cells
The intestinal mucosal epithelium has goblet cells which secrete mucus which protects the intestinal mucosa from various enzymes.

Duodenal cells secrete bicarbonates that neutralize the acidic chyme.

Gastric glands have peptic and oxyntic cells.

Peptic or chief cells secrete the proenzyme pepsinogen.

Parietal or oxyntic cells secrete HCl and intrinsic factor.

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