Pulmonary Gas ExchangeGasesLungCarbon DioxideVentilation-Perfusion RatioLung DiseasesNoble GasesRespiratory TransportOxygenBlood Gas AnalysisLung NeoplasmsLung InjuryPartial PressurePulmonary CirculationRespiratory MechanicsLung Volume MeasurementsWater Loss, InsensibleRespirationPlant TranspirationOxygen ConsumptionRespiration, ArtificialRespiratory Distress Syndrome, AdultAcute Lung InjuryLung TransplantationPulmonary AlveoliRespiratory Dead SpaceCarcinoma, Non-Small-Cell LungLiquid VentilationTidal VolumePulmonary VentilationRespiratory Function TestsPhotosynthesisPlant StomataPositive-Pressure RespirationPulmonary Diffusing CapacityRespiratory InsufficiencyPlant LeavesChromatography, GasDeuterium Exchange MeasurementGas Chromatography-Mass SpectrometryPulmonary EdemaRespiratory Physiological PhenomenaWaterLung ComplianceHeliumFluorocarbonsExchange Transfusion, Whole BloodExtravascular Lung WaterSister Chromatid ExchangeTotal Lung CapacityExercise TestModels, BiologicalHemodynamicsPulmonary SurfactantsWork of BreathingEcological Systems, ClosedLung Diseases, InterstitialAnoxiaBlood-Air BarrierAir PressureAdministration, InhalationBotanyLung Diseases, ObstructiveCardiac OutputVentilator-Induced Lung InjuryXenon IsotopesGas PoisoningBronchoalveolar Lavage FluidVital CapacityHydrogen-Ion ConcentrationAnaerobic ThresholdPhysical ExertionKineticsHigh-Frequency VentilationPulmonary FibrosisAcid-Base EquilibriumOxygenatorsHydrogenAirPneumonectomyVentilators, MechanicalPulmonary EmphysemaArtificial OrgansDiffusionSheepHypertension, PulmonarySpirometryFunctional Residual CapacityForced Expiratory VolumeExerciseArrhythmia, SinusExtracorporeal Membrane OxygenationOxygen IsotopesProne PositionTime FactorsDecapitationDogsGillsHypercapniaAcclimatization