Ganglia, SpinalSpinal CordSympathetic Fibers, PostganglionicGangliaAutonomic Fibers, PostganglionicNeurons, AfferentRetinal Ganglion CellsGanglia, SympatheticNeuronsGanglia, AutonomicGanglia, ParasympatheticBasal GangliaCarotid ArteriesTrigeminal GanglionChick EmbryoCarotid StenosisGanglia, SensoryCarotid Artery DiseasesStellate GanglionSuperior Cervical GanglionSpinal Cord InjuriesEndarterectomy, CarotidCarotid Artery, InternalSpiral GanglionNodose GanglionCarotid BodyParasympathetic Fibers, PostganglionicCarotid Artery, CommonAutonomic Fibers, PreganglionicGanglia, InvertebrateCarotid SinusSympathetic Nervous SystemHexamethonium CompoundsElectric StimulationParasympathetic Nervous SystemGanglionic BlockersBasal Ganglia DiseasesRetinaAxonsDenervationAction PotentialsGeniculate GanglionRats, Sprague-DawleyCatsCarotid Artery, ExternalHypogastric PlexusSpinal NervesBretylium CompoundsHorner SyndromeVagus NerveOptic NerveSpinal Nerve RootsNerve RegenerationPempidineInjections, SpinalSynaptic TransmissionElectrophysiologyCarotid Artery ThrombosisTime FactorsSynapsesCarotid Artery InjuriesGuanethidineMotor NeuronsPentolinium TartrateImmunohistochemistrySpinal Cord DiseasesSympathectomyAxonal TransportSensory Receptor CellsGuinea PigsMembrane PotentialsAnesthesia, SpinalNerve Tissue ProteinsNeurons, EfferentCarotid Intima-Media ThicknessReflexAtropineAcetylcholineAnimals, NewbornNorepinephrineHorseradish PeroxidaseSpinal Cord NeoplasmsNerve Growth FactorsCells, CulturedSpinal CanalSubstance PAxotomyTyrosine 3-MonooxygenaseTubocurarineEfferent PathwaysSpinal Cord CompressionNerve FibersTetrodotoxinSpinal DiseasesAdrenergic FibersCell CountOptic Nerve InjuriesRats, WistarSpinal NeoplasmsNictitating Membrane