Blood PressurePressureHypertensionBlood Pressure DeterminationHeart RateBlood Pressure Monitoring, AmbulatoryHemodynamicsArterial PressureAntihypertensive AgentsHydrostatic PressureVascular ResistanceHypotensionSympathetic Nervous SystemPulseReninCardiac OutputRegional Blood FlowRats, Inbred SHRBaroreflexPressoreceptorsSystoleTime FactorsBlood Flow VelocityKidneyIntracranial PressureDogsHypertension, RenalCardiovascular SystemBlood Pressure MonitorsNorepinephrineArteriesIntraocular PressureTransducers, PressureAngiotensin IIDiastoleDiet, Sodium-RestrictedRenal CirculationPulsatile FlowVenous PressurePhenylephrineRats, Inbred WKYSodium, DietaryRats, Sprague-DawleyAngiotensin-Converting Enzyme InhibitorsCardiovascular Physiological PhenomenaCaptoprilReflexAnesthesiaCentral Venous PressureReference ValuesAtmospheric PressureHypertension, RenovascularVasodilationAnalysis of VarianceRenin-Angiotensin SystemVasoconstrictor AgentsVasoconstrictionShock, HemorrhagicDose-Response Relationship, DrugAir PressureProspective StudiesCircadian RhythmSodiumDouble-Blind MethodComplianceBody WeightAortaPostureCerebrovascular CirculationBlood VolumeVentricular PressureHypotension, OrthostaticAldosteroneVasodilator AgentsPulmonary Wedge PressureForearmNitroprussideHeartSodium ChlorideAtenololRespirationHypotension, ControlledSodium Chloride, DietaryCardiovascular DiseasesRats, WistarCarotid ArteriesDisease Models, AnimalFollow-Up StudiesBrachial ArteryRadial ArteryOxygenRegression AnalysisEpinephrineGlomerular Filtration RateEnalaprilDesoxycorticosteroneElasticityHydralazineRisk FactorsNifedipine