Sympathetic Fibers, PostganglionicAutonomic Fibers, PostganglionicParasympathetic Fibers, PostganglionicGanglia, ParasympatheticGanglia, SympatheticParasympathetic Nervous SystemSympathetic Nervous SystemHexamethonium CompoundsBretylium CompoundsGanglionic BlockersGanglia, AutonomicHorner SyndromeAutonomic Fibers, PreganglionicPempidineSuperior Cervical GanglionGuanethidinePentolinium TartrateElectric StimulationVagus NerveHypogastric PlexusAtropinePharmacologyDenervationStellate GanglionNorepinephrineSympathectomyHypohidrosisGangliaNictitating MembraneAutonomic Nervous System DiseasesTailAcetylcholineBethanidineParasympathomimeticsTubocurarineVas DeferensCatsGuinea PigsNeurons, EfferentNeuronsNeuroeffector JunctionAbducens Nerve DiseasesAdrenergic FibersDimethylphenylpiperazinium IodideTyramineVasoactive Intestinal PeptideChlorisondamineReflexHexamethoniumErgotamineSubmandibular GlandHeart RateSinoatrial NodeSweatingomega-Conotoxin GVIAPhenoxybenzamineSynaptic TransmissionPhrenic NerveParasympatholyticsAdrenergic alpha-2 Receptor AntagonistsHypotension, OrthostaticReceptors, MuscarinicMecamylamineSympatholyticsEfferent PathwaysTyrosine 3-MonooxygenaseMethacholine CompoundsTetrodotoxinRana catesbeianaAutonomic Nervous SystemNeuropeptide YPhysostigmineElectrophysiologyHeartNicotinePressoreceptorsAxonsAction PotentialsNeurotransmitter AgentsIleumMuscle, SmoothReceptors, NicotinicUrinary BladderProcaineCholinergic FibersYohimbineNerve EndingsPeroneal NervePhentolamineBlood PressurePirenzepineResearchTracheaDecerebrate StateDogsNeurons, AfferentHorseradish PeroxidaseReserpinePituitary Adenylate Cyclase-Activating PolypeptideMuscle Contraction