Adrenergic FibersSympathetic Fibers, PostganglionicAutonomic Fibers, PostganglionicSympathetic Nervous SystemHorner SyndromeNerve TissueNerve FibersTyrosine 3-MonooxygenaseCatsElectric StimulationNorepinephrineParasympathetic Fibers, PostganglionicGanglia, ParasympatheticGanglia, SympatheticParasympathetic Nervous SystemHexamethonium CompoundsBretylium CompoundsGanglionic BlockersGanglia, AutonomicAutonomic Fibers, PreganglionicDietary FiberMuscle Fibers, SkeletalPempidineSuperior Cervical GanglionGuanethidinePentolinium TartrateVagus NerveMineral FibersHypogastric PlexusDenervationAtropineMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchPharmacologyStellate GanglionCotton FiberSympathectomyGangliaHypohidrosisNictitating MembraneAutonomic Nervous System DiseasesTailNeuronsAcetylcholineGuinea PigsMuscle ContractionTubocurarineParasympathomimeticsBethanidineVas DeferensStress FibersReflexNeurons, EfferentVasoactive Intestinal PeptideNeuroeffector JunctionAbducens Nerve DiseasesAction PotentialsPurkinje FibersDimethylphenylpiperazinium IodideTyramineAxonsSynaptic TransmissionNerve Fibers, MyelinatedChlorisondamineHeart RateHexamethoniumSubmandibular GlandNeurons, AfferentEfferent PathwaysErgotamineSinoatrial NodeSweatingTetrodotoxinPhrenic NerveCholinergic Fibersomega-Conotoxin GVIAPhenoxybenzamineMossy Fibers, HippocampalParasympatholyticsReceptors, MuscarinicAdrenergic alpha-2 Receptor AntagonistsHeartHypotension, OrthostaticMusclesNerve EndingsMecamylamineSympatholyticsNeuropeptide YMethacholine CompoundsDogsRabbitsRana catesbeianaPhysostigmineProcaineAutonomic Nervous SystemMuscle, SmoothPeroneal NervePressoreceptorsRats, Sprague-DawleyNeurotransmitter Agents