Blood PressureHypertensionPressureHeart RateHemodynamicsAntihypertensive AgentsOxygenBaroreflexVascular ResistancePartial PressureCarbon DioxideBlood Pressure DeterminationHypotensionBlood Gas AnalysisRegional Blood FlowLower Body Negative PressureIntraocular PressureAnoxiaTime FactorsShock, HemorrhagicManometryBlood Pressure Monitoring, AmbulatoryDogsHypercapniaArterial PressureRats, Sprague-DawleyHypertension, PulmonaryCentral Venous PressureVasoconstrictionSystoleBlood Gas Monitoring, TranscutaneousOxygen ConsumptionComplianceHypotension, ControlledSphygmomanometersVenous PressurePulmonary CirculationIntracranial PressureProspective StudiesPressoreceptorsRespirationVentricular PressureTreatment OutcomePulmonary Gas ExchangePulmonary Wedge PressurePulmonary ArteryBlood Flow VelocityArteriesKidneyBlood Pressure MonitorsVasoconstrictor AgentsReflexRats, WistarRenal CirculationCarotid SinusAnesthesiaVasodilator AgentsPerfusionHypocapniaHypotension, OrthostaticVasodilationDiastolePostureBlood VolumeCardiovascular SystemPhenylephrineAmlodipineTetrazolesInsufflationChemoreceptor CellsVentricular Function, LeftTransducers, PressureIsofluraneCerebrovascular CirculationHeartSupine PositionForearmReninCardiovascular Physiological PhenomenaPneumoperitoneum, ArtificialNorepinephrineHydrochlorothiazideTelemetryGlaucomaNitric OxideConsciousnessResuscitationMuscle, SkeletalHydrostatic PressureAngiotensin-Converting Enzyme InhibitorsModels, CardiovascularGanglionic BlockersNG-Nitroarginine Methyl EsterExerciseHypertension, RenalOcular HypertensionTrabeculectomyTidal VolumeFollow-Up StudiesRespiratory Mechanics