Autonomic Fibers, PostganglionicAutonomic Fibers, PreganglionicSympathetic Fibers, PostganglionicSacrumDura MaterCerebrospinal Fluid PressureSkullPhysical Therapy ModalitiesMotionParasympathetic Fibers, PostganglionicObserver VariationGanglia, ParasympatheticNerve FibersGanglia, SympatheticParasympathetic Nervous SystemSympathetic Nervous SystemHexamethonium CompoundsBretylium CompoundsGanglionic BlockersGanglia, AutonomicDietary FiberHorner SyndromeMuscle Fibers, SkeletalPempidineSuperior Cervical GanglionElectric StimulationGuanethidinePentolinium TartrateVagus NerveMineral FibersHypogastric PlexusDenervationAtropineMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchPharmacologyStellate GanglionCotton FiberNorepinephrineAdrenergic FibersSympathectomyCatsGangliaHypohidrosisNictitating 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, HippocampalTyrosine 3-MonooxygenaseParasympatholyticsReceptors, MuscarinicAdrenergic alpha-2 Receptor AntagonistsHeartHypotension, OrthostaticMusclesNerve EndingsMecamylamineSympatholyticsNeuropeptide YMethacholine CompoundsDogsRabbitsRana catesbeianaPhysostigmineProcaine