Action PotentialsMembrane PotentialsNeuronsElectrophysiologyNeurons, AfferentMembrane Potential, MitochondrialCell MembranePatch-Clamp TechniquesIntracellular MembranesMembranesCalciumMotor NeuronsPotassiumElectric StimulationTetrodotoxinMembrane LipidsPotassium ChannelsElectric ConductivitySodiumGuinea PigsTime FactorsMembranes, ArtificialCells, CulturedSynaptic TransmissionAxonsCell Membrane PermeabilityIon ChannelsSynapsesSodium ChannelsMicroelectrodesDendritesMitochondriaPyramidal CellsNeural ConductionErythrocyte MembraneMembrane FluidityRats, Sprague-DawleyRats, WistarHippocampusModels, NeurologicalPotassium Channel Blockers4-AminopyridineTetraethylammonium CompoundsExcitatory Postsynaptic PotentialsHeartIon Channel GatingCalcium ChannelsTetraethylammoniumAnimals, NewbornFluorescent DyesNeural InhibitionChloridesEvoked PotentialsVentricular FunctionGanglia, SpinalModels, BiologicalKineticsgamma-Aminobutyric AcidInterneuronsDose-Response Relationship, DrugCatsBasement MembraneHeart Conduction SystemHydrogen-Ion ConcentrationMitochondrial MembranesRabbitsCalcium SignalingSodium Channel BlockersPost and Core TechniqueSensory Receptor CellsAdenosine TriphosphatePotassium Channels, Voltage-GatedCerebral CortexValinomycinSpinal CordDogsCell LinePurkinje FibersCalcium Channel BlockersPapillary MusclesNerve Tissue ProteinsHeart VentriclesMembrane Transport ProteinsCesiumMicroscopy, ElectronBariumImmunohistochemistryGABAergic NeuronsPeriodicitySynaptic MembranesMyocytes, CardiacGangliaGlutamic AcidMicroscopy, ConfocalElectrophysiological PhenomenaNeurotransmitter AgentsDopaminergic NeuronsProtein TransportMutationMuscles