Atrioventricular NodeHeart Conduction SystemHeart BlockSinoatrial NodeNeural ConductionAction PotentialsBone ConductionElectrocardiographyMedian NerveCardiac Pacing, ArtificialArrhythmias, CardiacRefractory Period, ElectrophysiologicalUlnar NerveHeart AtriaPeripheral NervesElectrophysiologic Techniques, CardiacElectrophysiologyAtrioventricular BlockTibial NerveAphasia, ConductionAtrial FlutterElectrodiagnosisAxonsSural NervePurkinje FibersCatheter AblationPeripheral Nervous System DiseasesWolff-Parkinson-White SyndromeElectric StimulationSciatic NerveMotor NeuronsAtrial FunctionDiabetic NeuropathiesNAV1.5 Voltage-Gated Sodium ChannelRanvier's NodesDogsConnexin 43Tachycardia, Atrioventricular Nodal ReentryPeroneal NerveAtrial FibrillationCarpal Tunnel SyndromeSodium ChannelsBody Surface Potential MappingBundle-Branch BlockHeart VentriclesAnti-Arrhythmia AgentsElectromyographyModels, CardiovascularConnexinsHeartNerve Fibers, MyelinatedPolyneuropathiesElectric ConductivityTachycardiaTachycardia, SupraventricularNerve FibersGap JunctionsNeurons, AfferentTime FactorsEvoked Potentials, SomatosensoryMyelin SheathTachycardia, ParoxysmalFlecainideSpinal Nerve RootsVentricular Function