Neural ConductionHeart Conduction SystemPeripheral NervesAtrioventricular NodeAction PotentialsImpulse Control DisordersPeripheral Nervous System DiseasesHeart BlockMotor NeuronsElectric StimulationPeripheral Nervous SystemNeurons, AfferentElectrophysiologyAxonsElectrocardiographyMedian NerveTime FactorsBone ConductionMyelin SheathRefractory Period, ElectrophysiologicalCatsSciatic NerveNerve RegenerationCardiac Pacing, ArtificialUlnar NerveArrhythmias, CardiacTibial NerveNeuronsRanvier's NodesNerve Fibers, MyelinatedHeart AtriaSpinal CordMechanoreceptorsSural NerveNerve FibersSensory Receptor CellsPeroneal NervePeripheral Vascular DiseasesDogsGrowth ConesElectrophysiologic Techniques, CardiacPeripheral Nerve InjuriesEvoked PotentialsSpinal Nerve RootsDiabetic NeuropathiesSchwann CellsPurkinje FibersSinoatrial NodeDecapodiformesSodium ChannelsMembrane PotentialsAtrioventricular BlockElectromyographyElectrodiagnosis