The intrinsic factor for vitamins B12 absorption is produced in the______________?
Correct answer: B. Stomach
- A. Liver
- B. Stomach
- C. Pancreas
- D. Duodenum
Explanation
Intrinsic factor is secreted by gastric parietal cells and binds vitamin B12 before its absorption in the terminal ileum. The liver stores B12 but does not produce intrinsic factor.
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