Spinal CordNerve FibersSpinal Cord InjuriesNerve Fibers, UnmyelinatedNerve Fibers, MyelinatedSciatic NerveAxonsSpinal Nerve RootsPeripheral NervesSpinal Cord DiseasesNeural ConductionSpinal Cord CompressionOptic NerveSpinal Cord NeoplasmsNeurons, AfferentNerve RegenerationSpinal NervesMyelin SheathSural NerveGanglia, SpinalSpinal Cord IschemiaNociceptorsMotor NeuronsElectric StimulationAfferent PathwaysRats, Sprague-DawleyInjections, SpinalSchwann CellsNerve EndingsCatsPeripheral Nerve InjuriesParaplegiaAction PotentialsPhysical StimulationCapsaicinMicroscopy, ElectronOphthalmic NerveSensory Receptor CellsAdrenergic FibersPeripheral Nervous System DiseasesNerve BlockMechanoreceptorsPainRetinal Ganglion CellsNeuronsSubstance PTibial NerveTrigeminal NerveSpinal Cord RegenerationOptic Nerve DiseasesMuscle Fibers, SkeletalWallerian DegenerationPosterior Horn CellsCalcitonin Gene-Related PeptideDietary FiberImmunohistochemistryNerve DegenerationReflexHyperalgesiaUbiquitin ThiolesteraseSpinal CanalOptic DiskNeuralgiaCochlear NerveNerve CrushCervical VertebraeSkinNerve Growth FactorsSpinal NeoplasmsAnesthesia, SpinalTomography, Optical CoherenceRanvier's NodesQuadriplegiaNeurofilament ProteinsMedian NerveNeurons, EfferentThoracic VertebraeDisease Models, AnimalSpinal DiseasesHindlimbDiabetic NeuropathiesUlnar NerveFacial NerveLumbosacral RegionUmbilical CordTime FactorsLaminectomyRecovery of FunctionPeripheral Nervous SystemNerve TissueNerve Tissue ProteinsSensationRats, WistarSolid WasteSympathetic Nervous SystemPain MeasurementDenervationPhrenic NerveLocomotionAnimals, Newborn