Hydrogen-Ion ConcentrationGastric Acidity DeterminationAcid-Base EquilibriumCarbon DioxideBicarbonatesHydrogenHydrogen BondingHydrogen PeroxidePotassiumMolar, ThirdSodiumHydrogen SulfideProtonsCalciumBuffersAcidosisChloridesIonsIon ChannelsHydrochloric AcidKineticsAcidosis, RespiratoryOsmolar ConcentrationGastric JuiceMagnesiumMembrane PotentialsAcetazolamideAcidosis, Renal TubularAlkalosis, RespiratoryIon TransportPartial PressureAmmonium ChlorideBiological Transport, ActiveCell Membrane PermeabilitySecretory RateWaterExtracellular SpacePotassium ChlorideHelix (Snails)TemperatureTurtlesSodium BicarbonateSodium ChlorideTime FactorsMetalsElectrophysiologyModels, BiologicalOxygenModels, ChemicalCations, MonovalentPhosphatesIon Channel GatingModels, MolecularCationsAcidsHypercapniaLactatesIon-Selective ElectrodesDogsCobaltCations, DivalentSodium-Hydrogen AntiporterAmilorideElectric ConductivityAequorinGastric MucosaDinitrophenolsBinding SitesPentagastrinSolutionsThermodynamicsBiological TransportSulfatesMolecular Sequence DataIonophoresMathematicsGastric AcidZincManganeseProtein ConformationLasalocidEndolymphQuaternary Ammonium CompoundsElectrochemistryGramicidinOxidation-ReductionMagnetic Resonance SpectroscopyDepression, ChemicalHydrogen CyanideAbsorptionChromiumRats, Inbred StrainsNeuronsCalcium ChlorideStrontiumOsmosisEnzymesCopperCatsNickel