Which of the following is not true of parietal cells?

A) They contain carbonic anhydrase that converts carbon dioxide and water into carbonic acid.
B) They produce bicarbonate by dissociation of carbonic acid.
C) They import chloride ions from the interstitial fluid to produce hydrochloric acid in the gastric glands.
D) They release bicarbonate into the lumen of gastric glands.
E) They release bicarbonate into the interstitial fluid that then enters the bloodstream.


Answer: D

Anatomy & Physiology

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