Back PainLow Back PainSciatic NerveBackPeripheral NervesOptic NerveNerve FibersNerve RegenerationNerve BlockNerve EndingsSural NerveMedian NerveNerve CrushFacial NervePeripheral Nerve InjuriesTibial NerveUlnar NerveFemoral NerveSpinal NervesNerve Growth FactorNerve Growth FactorsTrigeminal NerveBack InjuriesSpinal Nerve RootsPhrenic NerveRadial NerveCranial NervesNerve Compression SyndromesOphthalmic NerveNerve TissueMandibular NerveCochlear NerveSplanchnic NervesGlossopharyngeal NerveNeural ConductionOptic Nerve InjuriesOptic Nerve DiseasesThoracic NervesNerve Fibers, MyelinatedAccessory NerveFacial Nerve InjuriesAbducens NerveOculomotor NerveAxonsSympathetic Nervous SystemCranial Nerve NeoplasmsFacial Nerve DiseasesRecurrent Laryngeal NerveElectric StimulationLingual NerveOlfactory NerveHypoglossal NerveNerve DegenerationAbducens Nerve DiseasesMaxillary NervePeripheral Nervous System DiseasesPain MeasurementOculomotor Nerve DiseasesNerve Tissue ProteinsNerve Sheath NeoplasmsReceptors, Nerve Growth FactorNeurons, AfferentDenervationSciatic NeuropathyCranial Nerve InjuriesMotor NeuronsChorda Tympani NerveVestibular NerveNerve Fibers, UnmyelinatedTranscutaneous Electric Nerve StimulationLumbar VertebraeTrigeminal Nerve DiseasesFailed Back Surgery SyndromeCatsPeripheral Nervous System NeoplasmsRats, Sprague-DawleyReceptor, Nerve Growth FactorMyelin SheathAction PotentialsLaryngeal Nerve InjuriesObturator NerveNeuromuscular JunctionGanglia, SpinalBrachial PlexusReflexOptic DiskNeuralgiaElectromyographyOptic Nerve NeoplasmsRetinal Ganglion CellsSensory Receptor CellsAxotomySpinal CordRadiculopathyFacial ParalysisAdrenergic FibersChronic PainLumbosacral PlexusAfferent PathwaysLumbosacral Region