Pulmonary Gas ExchangeVentilation-Perfusion RatioNoble GasesBlood Gas AnalysisOxygenCarbon DioxideArrhythmia, SinusDiffusionPulmonary CirculationRespiratory MechanicsPulmonary VentilationPulmonary Diffusing CapacityPartial PressureRespiratory Dead SpaceRespirationRespiration, ArtificialOxygen ConsumptionTidal VolumeLungGasesRespiratory Function TestsPulmonary EdemaSmoke Inhalation InjuryPhysical ExertionHyperventilationRespiratory Distress Syndrome, AdultVentilationAnoxiaHepatopulmonary SyndromeCardiac OutputExercise TestHemodynamicsExtravascular Lung WaterExercisePositive-Pressure RespirationPulmonary AlveoliLung DiseasesBicyclingHigh-Frequency VentilationVital CapacitySpirometryHeart RateDiffusion Magnetic Resonance ImagingIntermittent Positive-Pressure VentilationDogsForced Expiratory VolumeRespiratory TransportLung Volume MeasurementsLactic AcidTime FactorsHigh-Frequency Jet VentilationDiffusion Tensor ImagingVentilator WeaningInhalationVentilators, MechanicalNoninvasive VentilationNeonLung ComplianceHeliumWork of BreathingModels, BiologicalHypercapniaWater Loss, InsensibleIntubation, IntratrachealPlant TranspirationAir PressureRespiratory Physiological PhenomenaVentilator-Induced Lung InjuryFluorocarbonsLiquid VentilationLung InjuryWaterFacilitated DiffusionPhotosynthesisPlant Leaves