Hydrogen-Ion ConcentrationGastric Acidity DeterminationAcid-Base EquilibriumCarbon DioxideBicarbonatesHydrogenHydrogen BondingHydrogen PeroxidePotassiumSodiumHydrogen SulfideProtonsCalciumBuffersAcidosisChloridesIonsIon ChannelsHydrochloric AcidAcidosis, RespiratoryKineticsOsmolar ConcentrationGastric JuiceMagnesiumMembrane PotentialsAcetazolamideAcidosis, Renal TubularAlkalosis, RespiratoryIon TransportPartial PressureAmmonium ChlorideBiological Transport, ActiveCell Membrane PermeabilitySecretory RateExtracellular SpaceWaterHelix (Snails)Potassium ChlorideTurtlesSodium BicarbonateSodium ChlorideTemperatureElectrophysiologyTime FactorsMetalsModels, BiologicalCations, MonovalentOxygenModels, ChemicalPhosphatesIon Channel GatingModels, MolecularCationsAcidsHypercapniaLactatesIon-Selective ElectrodesDogsSodium-Hydrogen AntiporterAmilorideElectric ConductivityCobaltCations, DivalentAequorinGastric MucosaDinitrophenolsPentagastrinBiological TransportIonophoresGastric AcidBinding SitesSulfatesSolutionsThermodynamicsManganeseEndolymphMathematicsLasalocidZincQuaternary Ammonium CompoundsElectrochemistryMolecular Sequence DataProtein ConformationGramicidinHydrogen CyanideDepression, ChemicalChromiumOxidation-ReductionStrontiumNeuronsEnzymesAbsorptionOsmosisCatsCalcium ChloridePotassium IsotopesRats, Inbred StrainsAir IonizationChelating AgentsMagnetic Resonance Spectroscopy