Atrophy of gastric mucosal cells results in pernicious anemia because of:
A)erythrocyte destruction.
B)folic acid malabsorption.
C)vitamin B₁₂ malabsorption.
D)poor nutritional intake.

Question

Quizplus · Accepted Answer

Deficiency in intrinsic factor (IF) secretion may be congenital or result from adult onset gastric mucosal atrophy and destruction of parietal cells. In older adults, virtually all vitamin B₁₂-deficiency anemia is caused by a failure of IF-related absorption.

Atrophy of Gastric Mucosal Cells Results in Pernicious Anemia Because