Sympathetic Fibers, PostganglionicAutonomic Fibers, PostganglionicAdrenergic FibersAutonomic Fibers, PreganglionicSympathetic Nervous SystemHorner SyndromeNerve FibersNerve TissueParasympathetic Fibers, PostganglionicCatsTyrosine 3-MonooxygenaseElectric StimulationGanglia, ParasympatheticGanglia, SympatheticNorepinephrineParasympathetic Nervous SystemHexamethonium CompoundsBretylium CompoundsGanglionic BlockersGanglia, AutonomicDietary FiberMuscle Fibers, SkeletalPempidineSuperior Cervical GanglionGuanethidinePentolinium TartrateVagus NerveMineral FibersHypogastric PlexusDenervationAtropineMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchPharmacologyStellate GanglionCotton FiberSympathectomyGanglia