Adrenergic FibersHydroxydopaminesSympathetic Nervous SystemNorepinephrineNerve EndingsReserpineGuanethidineAdrenergic NeuronsBretylium CompoundsTyramineMetaraminolSciatic NerveElectric StimulationSympathectomyPeripheral NervesPhentolamineSympathectomy, ChemicalOptic NerveNerve FibersNictitating MembranePhenoxybenzamineDesipramineVas DeferensSympatholyticsAdrenergic AgentsAtropineReceptors, AdrenergicDenervationBretylium TosylateLevallorphanPentolinium TartrateNerve RegenerationNeuroeffector JunctionMesenteric ArteriesHistocytochemistryMuscle ContractionNerve BlockCatecholaminesSural NerveMedian NerveMuscle, SmoothGuinea PigsFacial NerveNerve CrushPeripheral Nerve Injuries3-IodobenzylguanidineTibial NerveUlnar NerveArteriesPropranololSympathomimeticsFemoral NerveHexamethonium CompoundsSpinal NervesDogsCalcitonin Gene-Related PeptideVasoconstrictionReceptors, Adrenergic, alphaNerve Growth FactorTrigeminal NerveCocaineNerve Growth FactorsAcetylcholineAdrenergic alpha-AntagonistsBlood VesselsRabbitsCatsPhrenic NerveRadial NerveVasomotor SystemClonidineCranial NervesSpinal Nerve RootsSerotoninNerve Compression SyndromesPrazosinSynaptic TransmissionEpinephrineReceptors, Adrenergic, betaOphthalmic NerveHeartTetrodotoxinNerve TissueMandibular NerveNicotineMuscle, Smooth, VascularCochlear NerveSplanchnic NervesGlossopharyngeal NerveMicroscopy, ElectronNeural ConductionOptic Nerve InjuriesOptic Nerve DiseasesDose-Response Relationship, DrugIsoproterenolThoracic NervesNerve Fibers, MyelinatedAccessory NerveMicroscopy, FluorescenceRats, Inbred Strains