NCLEX Questions on Gastrointestinal System Related

Review NCLEX Questions on Gastrointestinal System related questions and content

The parietal cells in the gastric glands of the pyloric region produce ______ that bonds with Vitamin ______ to make it more readily absorbed in the ileum.

  • A. hydrochloric acid; B12
  • B. mucus; D
  • C. pepsinogen; D
  • D. intrinsic factor; B12
Correct Answer: D

Rationale: The correct answer is D because intrinsic factor is produced by parietal cells in the gastric glands of the pyloric region. Intrinsic factor forms a complex with Vitamin B12, which is essential for its absorption in the ileum. This mechanism is crucial for preventing Vitamin B12 deficiency.

Choice A is incorrect because hydrochloric acid is produced by parietal cells but does not bond with Vitamin B12 for absorption. Choice B is incorrect as mucus is not involved in Vitamin B12 absorption. Choice C is incorrect as pepsinogen is not responsible for facilitating Vitamin B12 absorption.