Blood PressureBlood Gas AnalysisHeart RateCarbon DioxideHemodynamicsRegional Blood FlowOxygenPartial PressureArteriesVascular ResistanceCerebrovascular CirculationArterial PressureBlood Flow VelocityRespirationHypotensionDogsCardiac OutputHypercapniaAnesthesiaSympathetic Nervous SystemAcid-Base EquilibriumAnoxiaCardiovascular SystemBaroreflexPulmonary Gas ExchangeIntracranial PressureHypertensionTime FactorsOximetryOxygen ConsumptionCatsSplanchnic CirculationPressoreceptorsVeinsReflexHypotension, ControlledRespiratory InsufficiencyRats, Sprague-DawleyHematocritCardiovascular Physiological PhenomenaAcid-Base ImbalanceHyperventilationBlood VolumeBlood CirculationLiver CirculationNorepinephrineBlood Gas Monitoring, TranscutaneousAnesthesia, GeneralHypocapniaRenal CirculationPhenylephrineInfusions, IntravenousMonitoring, PhysiologicShock, HemorrhagicDose-Response Relationship, DrugBrainCarotid SinusInjections, IntravenousKidneySheepAcidosisEpinephrineHydrogen-Ion ConcentrationLower Body Negative PressureAnesthesia, InhalationVasoconstrictor AgentsRats, WistarRespiration, ArtificialHomeostasisPropofolMedulla OblongataFemoral ArteryLaser-Doppler FlowmetryBody TemperatureVasoconstrictionCentral Venous PressureLactic AcidUltrasonography, Doppler, TranscranialTrimethaphanRespiratory Dead SpaceNG-Nitroarginine Methyl EsterAnesthetics, IntravenousPulmonary VentilationRespiratory MechanicsAnesthesia, IntravenousCapnographyVagotomyBlood Pressure DeterminationFetal HypoxiaChemoreceptor CellsAngiotensin IIAcidosis, RespiratoryIsofluraneNitric OxideHypoventilationLungReninRespiratory Function TestsVasopressinsAntihypertensive Agents