In the gastric epithelium, which cells stain positively with the periodic acid Schiff (PAS) reac-tion?
a. Chief cells
b. Enteroendocrine cells
c. Mucous neck cells
d. Paneth cells
e. Parietal cells
ANS: C
The mucin proteins produced by mucous neck cells are highly glycosylated and hence, PAS-positive.
Anatomy & Physiology
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