Heart Conduction SystemElectric StimulationNeural ConductionAtrioventricular NodeImpulse Control DisordersAction PotentialsHeart BlockElectrocardiographyBone ConductionElectrophysiologyRefractory Period, ElectrophysiologicalMedian NerveAxonsCardiac Pacing, ArtificialArrhythmias, CardiacPeripheral NervesHeart AtriaUlnar NerveNeurons, AfferentMotor NeuronsElectrophysiologic Techniques, CardiacCatsPurkinje FibersNerve FibersTibial NerveMechanoreceptorsSinoatrial NodeAtrioventricular BlockTime FactorsSciatic NerveWolff-Parkinson-White SyndromeAtrial FunctionDogsAphasia, ConductionAtrial FlutterCatheter AblationElectrodiagnosisEvoked PotentialsRanvier's NodesConnexin 43Sural NervePeripheral Nervous System DiseasesPeroneal NerveElectromyographyNAV1.5 Voltage-Gated Sodium ChannelNerve Fibers, MyelinatedSodium ChannelsTachycardia, Atrioventricular Nodal ReentryHeart VentriclesModels, CardiovascularHeartAtrial FibrillationConnexinsDiabetic NeuropathiesElectric ConductivityCarpal Tunnel SyndromeMembrane PotentialsBody Surface Potential MappingGap JunctionsBundle-Branch BlockSpinal Nerve RootsMyelin SheathReaction TimeTachycardiaAnti-Arrhythmia AgentsLidocaineSensory Receptor CellsVagus NerveEvoked Potentials, SomatosensoryVentricular FunctionPolyneuropathiesSynaptic TransmissionElasticity Imaging TechniquesTachycardia, SupraventricularNerve EndingsMusclesTetrodotoxinDemyelinating DiseasesCrustaceaMyocardiumSpinal CordRadial NervePhysical StimulationNerve BlockCardiac Complexes, PrematureMuscle SpindlesTachycardia, ParoxysmalLeechesNeuromuscular JunctionThermoreceptorsFlecainidePotassiumOscillometryMicroelectrodesVibrationCardanolidesElectrophysiological PhenomenaPericardiumAfferent PathwaysMyocytes, Cardiac