Tidal VolumeMacrophages, AlveolarPulmonary AlveoliRespiration, ArtificialRespiratory MechanicsRespirationVentilators, MechanicalPositive-Pressure RespirationPulmonary VentilationLung ComplianceRespiratory Dead SpaceLung Volume MeasurementsVentilator-Induced Lung InjuryRespiratory Distress Syndrome, AdultCarbon DioxidePulmonary Gas ExchangeAlveolar ProcessBlood VolumeAir PressureLung InjuryAirway ResistanceRespiratory RatePulmonary Alveolar ProteinosisInhalationHypercapniaRespiratory Function TestsBarotraumaLungWork of BreathingFunctional Residual CapacityBronchoalveolar Lavage FluidOxygenAcute Lung InjuryBlood Gas AnalysisPulmonary SurfactantsAlveolar Bone LossRhabdomyosarcoma, AlveolarLung DiseasesPlethysmographyPartial PressurePulmonary EdemaPlethysmography, Whole BodyIntubation, IntratrachealRespiratory Physiological PhenomenaPressureRespiratory MusclesRespiratory InsufficiencyHyperventilationCapnographyDiaphragmHigh-Frequency VentilationPulmonary Stretch ReceptorsVentilator WeaningStroke VolumeThoraxTime FactorsPlasma VolumeInspiratory CapacityForced Expiratory VolumeApneaExhalationRats, Sprague-DawleySpirometryAerosolsHyperoxiaHemodynamicsAnesthesiaEquipment DesignAnoxiaTotal Lung CapacityAnesthesia, GeneralVagotomyPneumocytesRespiratory MucosaPulmonary CirculationPlethysmography, ImpedanceHeliumBronchoalveolar LavageChemoreceptor CellsDioctyl Sulfosuccinic AcidOxygen ConsumptionBlood-Air BarrierCardiac OutputVital CapacityManikinsPneumoniaExpiratory Reserve VolumeErythrocyte VolumeLung Diseases, ObstructiveDogsPulmonary AtelectasisPulmonary Surfactant-Associated Protein AAdministration, InhalationArrhythmia, SinusPhrenic NerveBronchoconstrictor AgentsPulmonary Surfactant-Associated Protein CThoracic WallModels, BiologicalDisease Models, Animal