Pulmonary CirculationBlood CirculationPulmonary ArteryVeinsArteriesJugular VeinsRegional Blood FlowFemoral VeinHemodynamicsBlood PressureDogsHypertension, PulmonaryLungVascular ResistanceAnoxiaDuctus ArteriosusPulmonary Heart DiseaseExtracorporeal CirculationVasoconstrictionPulmonary VeinsHypertrophy, Right VentricularAtrial PressureNitric OxideCardiac OutputSheepCapillary ResistancePersistent Fetal Circulation SyndromeCollateral CirculationVasodilationVentricular Function, RightAnatomy, RegionalPulmonary Gas ExchangeBlood Flow VelocityPerfusionVasodilator AgentsModels, CardiovascularPulmonary Wedge PressureBronchial ArteriesEnterohepatic CirculationFetusCardiac CatheterizationPulmonary EdemaPhysiologyCoronary CirculationCerebrovascular Circulation15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidOsteoarthropathy, Secondary HypertrophicVenous PressureOxygenVentricular Dysfunction, RightAdministration, InhalationPulsatile FlowEndothelin-1Placental CirculationSynchrotronsRespirationCardiography, ImpedanceSplanchnic CirculationCapillariesEndothelium, VascularVasoconstrictor AgentsTime FactorsPulmonary Valve StenosisMonocrotalineAnimals, NewbornBlood Circulation TimePulmonary AlveoliPulmonary EmbolismHeart Defects, CongenitalMicrocirculationNitric Oxide SynthaseLiver CirculationAdrenomedullinDuctus Arteriosus, PatentBlood VesselsNitroarginineProstaglandin Endoperoxides, SyntheticPregnancyRats, Sprague-DawleyAngiographyChronic DiseaseBlood VolumeEndothelinsMuscle, Smooth, VascularEpoprostenolBlood Gas AnalysisSwineHeart VentriclesNitric Oxide Synthase Type IIIInfant, NewbornArteriovenous FistulaHeartLung DiseasesHeart RateRabbitsReceptors, EndothelinNitroprussideHematocritCyclic GMPPressure