Membrane PotentialsAction PotentialsMembrane Potential, MitochondrialCell MembraneMembranesIntracellular MembranesMembrane LipidsPotassiumCalciumMembranes, ArtificialElectrophysiologyCell Membrane PermeabilityPatch-Clamp TechniquesSodiumElectric ConductivityErythrocyte MembraneMitochondriaPotassium ChannelsMembrane FluidityTetrodotoxinNeuronsElectric StimulationIon ChannelsGuinea PigsTime FactorsBasement MembraneMitochondrial MembranesMicroelectrodesValinomycinCells, CulturedChloridesHydrogen-Ion ConcentrationSodium ChannelsMembrane Transport ProteinsFluorescent DyesModels, BiologicalAdenosine TriphosphateTetraethylammonium CompoundsKineticsPotassium Channel BlockersIon Channel GatingRats, Sprague-DawleyCell Line4-AminopyridineTetraethylammoniumLipid BilayersBiological Transport, ActiveSynaptic TransmissionRabbitsCalcium ChannelsMembrane GlycoproteinsSynapsesTrityl CompoundsMicroscopy, ElectronNeural ConductionCarbonyl Cyanide p-TrifluoromethoxyphenylhydrazoneBariumSynaptic MembranesAxonsHeartProtein TransportRats, WistarDose-Response Relationship, DrugOuabainCarbonyl Cyanide m-Chlorophenyl HydrazoneCesiumVentricular FunctionDogsLiposomesCarrier ProteinsCalcium SignalingMicroscopy, FluorescencePyramidal CellsPurkinje FibersHeart Conduction SystemDendritesPotassium Channels, Voltage-GatedCarbocyaninesAnuraApoptosisTemperatureMicroscopy, ConfocalMusclesCalcium Channel BlockersMutationModels, NeurologicalIon TransportProtein BindingEvoked PotentialsHeart VentriclesPapillary MusclesMyocytes, CardiacPermeabilityMyocardiumOnium CompoundsSodium-Potassium-Exchanging ATPaseAcetylcholineExcitatory Postsynaptic PotentialsNigericinProtein Structure, Tertiary