Splanchnic NervesSpinal CordSpinal Cord InjuriesSpinal Cord DiseasesAdrenal MedullaPhysiology, ComparativeSpinal Cord CompressionAdrenal GlandsSpinal Cord NeoplasmsElectric StimulationSciatic NerveAdrenalectomyCatsEnkephalin, MethionineCatecholaminesSpinal NervesSpinal Cord IschemiaSpinal Nerve RootsCosyntropinPeripheral NervesNerve RegenerationInjections, SpinalNeurons, EfferentNerve FibersSympathetic Nervous SystemEpinephrineParaplegiaMotor NeuronsDenervationReflexOptic NerveAtropineVagotomySpinal Cord RegenerationVagus NerveCarnivoraGanglia, SympatheticAxonsSpinal CanalNorepinephrinePeripheral Nerve InjuriesCervical VertebraeGuanethidineSpinal NeoplasmsAnesthesia, SpinalRats, Sprague-DawleyQuadriplegiaTibial NervePhentolamineHypophysectomyThoracic VertebraePancreatic HormonesSpinal DiseasesNerve BlockNerve CrushPosterior Horn CellsGanglia, SpinalNerve EndingsPancreatic PolypeptideSural NerveUmbilical CordLaminectomyCeliac PlexusMedulla OblongataTrimethaphanMedian NerveTime FactorsRecovery of FunctionCattleChromaffin SystemNeuronsSecretory RateLumbosacral RegionFacial NerveAction PotentialsAdrenocorticotropic HormoneHexamethonium CompoundsAnimals, NewbornSpinal StenosisBlood PressureNerve Growth FactorsLocomotionUlnar NervePhrenic NerveSpinal Cord StimulationDopamine beta-HydroxylaseSpinal FusionSpinal InjuriesVasoactive Intestinal PeptideNeural PathwaysFemoral NerveAcetylcholineAnterior Horn CellsNeurons, AfferentPropranololNeuralgiaEnkephalinsCordotomyStomachMyelitis