Membrane PotentialsAction PotentialsPotassiumNerve FibersElectric ConductivityElectrophysiologyDietary FiberMuscle Fibers, SkeletalSodiumTetraethylammonium CompoundsPotassium ChannelsCalciumMusclesChloridesPurkinje FibersThoracicaPatch-Clamp TechniquesTetrodotoxinCesiumElectric StimulationIon ChannelsTetraethylammoniumMineral FibersNeuronsCrustaceaCell Membrane Permeability4-AminopyridineGuinea PigsMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchMicroelectrodesBariumThoriumCotton FiberOuabainAnuraMolluscaSodium ChannelsAminopyridinesTime FactorsMuscle ContractionAxonsPapillary MusclesTurtlesEccrine GlandsStress FibersSynapsesNeural ConductionHeartAcetylcholineIon Channel GatingMotor NeuronsSynaptic TransmissionPotassium Channels, Tandem Pore DomainNerve Fibers, MyelinatedRana catesbeianaHair Cells, AuditoryNeurons, AfferentRana pipiensCatsBarium CompoundsPeriplanetaMyofibrilsStrophanthidinAstacoideaDecapodiformesGangliaBromidesEvoked PotentialsMossy Fibers, HippocampalMechanoreceptorsHeart Conduction SystemHair Cells, VestibularNeuromuscular JunctionMyotonia CongenitaCells, CulturedIontophoresisPotassium Channel BlockersQuinineKineticsGlutamatesMagnesiumHarmalinePhotoreceptor CellsGoldfishEndolymphDinitrophenolsVentricular FunctionCharybdotoxinRats, Sprague-DawleyIsotonic SolutionsRana esculentagamma-Aminobutyric AcidRabbitsModels, NeurologicalHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsExtracellular SpaceCell MembraneLithiumMuscarine