Trigeminal NerveTrigeminal Nerve DiseasesTrigeminal Nerve InjuriesTrigeminal NeuralgiaSpinal CordCranial Nerve NeoplasmsSpinal Cord InjuriesOphthalmic NerveMaxillary NerveTrigeminal NucleiTrigeminal Nucleus, SpinalPeripheral NervesSciatic NerveNerve Compression SyndromesFacial PainFacial NerveSpinal Nerve RootsTrigeminal GanglionNerve FibersNevus of OtaSpinal NervesMandibular NerveNeurilemmomaCranial Nerve DiseasesCranial NervesOptic NerveLingual Nerve InjuriesMasticatory MusclesCerebellopontine AngleLingual NerveNeuritisNerve RegenerationHypesthesiaZoster Sine HerpeteInjections, SpinalAbducens NerveMicrovascular Decompression SurgeryPetrous BoneCranial Fossa, MiddleElectric StimulationDura MaterSpinal Cord DiseasesTrigeminal Caudal NucleusAnesthesia, SpinalCalcitonin Gene-Related PeptideBrain StemOlfactory NerveNerve BlockNeuralgiaSpinal Cord NeoplasmsSpinal CanalDenervationPeripheral Nerve InjuriesAfferent PathwaysBlinkingPterygopalatine FossaRats, Sprague-DawleyAxonsElectrocoagulationNerve EndingsPeripheral Nervous System NeoplasmsSural NerveTibial NerveCavernous SinusNeurons, AfferentMedian NerveSpinal DiseasesSpinal Cord CompressionReflexNerve CrushMagnetic Resonance ImagingMonotremataSpinal NeoplasmsFacial MusclesParesthesiaUlnar NerveHorner SyndromeSpinal StenosisEthylnitrosoureaPhysical StimulationFemoral NerveSpinal FusionRhizotomyPhotophobiaHyperalgesiaCluster HeadacheMicrosurgeryDiazonium CompoundsLateral Medullary SyndromeToothacheDecompression, SurgicalGanglia, SpinalMotor NeuronsNerve Growth FactorsCatsGranuloma, Plasma CellPhrenic NerveCapsaicinIrritantsCentral Nervous System Sensitization