Sympathetic Nervous SystemCentral Nervous SystemSympathectomy, ChemicalNorepinephrineSympathectomyHeart RateBlood PressureNervous SystemPeroneal NerveSympathetic Fibers, PostganglionicAutonomic Nervous System DiseasesAutonomic Nervous SystemEpinephrineBaroreflexCatecholaminesSympatholyticsHypertensionGanglionic BlockersCentral Nervous System DiseasesAdrenergic FibersPeripheral Nervous SystemPentolinium TartrateGuanethidineMuscle, SkeletalDenervationGanglia, SympatheticLower Body Negative PressureAdrenergic alpha-AntagonistsNervous System NeoplasmsHydroxydopaminesStellate GanglionPropranololPressoreceptorsDopamine beta-HydroxylaseAdrenergic beta-AntagonistsEnteric Nervous SystemCentral Nervous System NeoplasmsReflexPhentolamineSympathomimeticsNeuronsParasympathetic Nervous SystemHemodynamicsReceptors, Adrenergic, betaCold TemperatureBrainRenin-Angiotensin SystemHead-Down TiltNeuropeptide YAdrenal MedullaNeuroblastomaPrazosinHypotension, OrthostaticVascular ResistanceTime FactorsForearmRats, Sprague-DawleyRegional Blood FlowHypertension, RenalHeartReninHexamethonium Compounds3-IodobenzylguanidineHand StrengthAdipose Tissue, BrownReceptors, AdrenergicNervous System Physiological PhenomenaKidneyStress, PhysiologicalClonidineGanglioneuromaAngiotensin IIVagus NerveCardiovascular SystemReserpineHypothalamo-Hypophyseal SystemHexamethoniumPituitary-Adrenal SystemHypothalamusOxidopamineGanglia, AutonomicTrimethaphanSuperior Cervical GanglionVasoconstrictionPostureCentral Nervous System InfectionsPhenoxybenzamineAntihypertensive AgentsLeptinAdrenal GlandsGalvanic Skin ResponseInjections, IntraventricularHypothalamus, PosteriorReceptors, Adrenergic, alpha-2Rats, Inbred SHRSpinal CordStress, PsychologicalNervous System DiseasesNeuroimmunomodulationPhodopus