Blood PressureHeart RateArteriesPressureBlood Pressure DeterminationHypertensionBlood Flow VelocityBlood Pressure Monitoring, AmbulatoryRegional Blood FlowCerebral ArteriesFemoral ArteryMiddle Cerebral ArteryPulmonary ArteryCarotid ArteriesHemodynamicsOphthalmic ArteryAntihypertensive AgentsPulsatile FlowMesenteric Artery, SuperiorMesenteric ArteriesVascular ResistanceRenal ArteryUmbilical ArteriesRadial ArteryCerebrovascular CirculationBrachial ArteryUltrasonography, DopplerHydrostatic PressureBronchial ArteriesUltrasonography, Doppler, PulsedTime FactorsUltrasonography, Doppler, TranscranialSystoleCarotid Artery, InternalBasilar ArteryBlood Pressure MonitorsUterusArterial PressureUltrasonography, Doppler, ColorVasodilationCardiac OutputCarotid Artery, CommonProspective StudiesVasoconstrictionDogsIliac ArteryCoronary VesselsCoronary Artery BypassUterine ArteryVertebral ArteryVasodilator AgentsSympathetic Nervous SystemDiastolePregnancyRats, Inbred SHRCarotid Artery DiseasesReference ValuesHypotensionMammary ArteriesCoronary CirculationFetal Growth RetardationPulseIntracranial PressureHypotension, OrthostaticAnalysis of VarianceFollow-Up StudiesSubclavian ArteryTreatment OutcomeReninLaser-Doppler FlowmetryVasoconstrictor AgentsIntraocular PressureUltrasonographyRisk FactorsCarotid Artery, ExternalTransducers, PressureNorepinephrineSplanchnic CirculationRenal Artery ObstructionOxygenSplenic ArteryCircle of WillisRats, Sprague-DawleyExercisePostureKidneyCarbon DioxideHypocapniaHepatic ArteryRats, Inbred WKYNitroglycerinCardiovascular DiseasesSupine PositionVenous PressureCircadian RhythmGestational AgeUltrasonography, PrenatalNitric OxideHypertension, RenalAtmospheric Pressure