Nerve Fibers, UnmyelinatedNerve Fibers, MyelinatedNerve FibersAxonsNeural ConductionMyelin SheathNeurons, AfferentSpinal Nerve RootsSchwann CellsSural NerveNociceptorsSciatic NervePeripheral NervesGanglia, SpinalAfferent PathwaysMicroscopy, ElectronCapsaicinWallerian DegenerationMechanoreceptorsPhysical StimulationSensory Receptor CellsNeurons, EfferentContactin 1Neuronal Tract-TracersAction PotentialsCantharidinChronaxyCatsPeripheral Nervous System DiseasesElectric StimulationSkinPeroneal NerveNAV1.6 Voltage-Gated Sodium ChannelNeurofilament ProteinsMice, Neurologic MutantsOphthalmic NerveRats, Sprague-DawleyPeripheral Nervous SystemAdrenergic FibersMustard PlantTrochlear NerveRanvier's NodesOptic NerveMononeuropathiesDiabetic NeuropathiesMicroscopy, Electron, TransmissionPainCalcitonin Gene-Related PeptideNerve DegenerationHot TemperatureSodium ChannelsNerve EndingsNeuronsSpinal CordThermosensingSensationSpinal NervesAutonomic Fibers, PreganglionicTRPV Cation ChannelsLeukodystrophy, Globoid CellTrigeminal NerveLidocainePeripheral Nerve InjuriesSubstance PUbiquitin ThiolesteraseSensory ThresholdsReflexUrinary BladderElectrophysiologyVagus NerveAxotomyNAV1.8 Voltage-Gated Sodium ChannelNerve RegenerationTetrodotoxinHyperalgesiaAxonal TransportCorpus CallosumPain ThresholdNeural PathwaysMicroscopy, ImmunoelectronNerve BlockNeuralgiaCell CountTongueMacaca fascicularisPain MeasurementAnimals, NewbornPresynaptic TerminalsSodium Channel BlockersTouchTrigeminal GanglionImmunohistochemistryPosterior Horn CellsRats, WistarAnkyrinsReceptor, trkAEvoked PotentialsPatch-Clamp TechniquesNeurogliaAnesthetics, Local