How does atrophy of gastric mucosal cells result in pernicious anemia? A) Because of erythrocyte destruction B) Because of folic acid malabsorption C) Because of vitamin B₁₂ malabsorption D) Because of poor nutritional intake

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Gastric mucosal cells produce intrinsic factor, which is necessary for the absorption of vitamin B12 in the small intestine. Atrophy of these cells results in a decrease in intrinsic factor production, causing vitamin B12 malabsorption and subsequent pernicious anemia.

How Does Atrophy of Gastric Mucosal Cells Result in Pernicious