Gastric Acid
Secretion
un
seel
.com · parietal cell · proton pump · histamine · PPI
lumen pH
7.0
H+/K+ pump
idle
pumps active
0
state
—
H+ protons (into lumen)
K+ potassium (counter-ion)
parietal cell · pump
histamine / gastrin / ACh
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Un
seel
.com · Gastric Acid Secretion