Pulmonary AlveoliMammalsLungPulmonary SurfactantsTooth SocketBronchiolesPulmonary Alveolar ProteinosisMammary Glands, AnimalSurface TensionLung CompliancePulmonary Surfactant-Associated ProteinsBronchiAerosolsLung Volume MeasurementsLung DiseasesPulmonary EdemaAlveolar ProcessEpitheliumBronchoalveolar Lavage FluidPulmonary AtelectasisEpithelial CellsPhysical PhenomenaMacrophages, AlveolarElastic TissueMolecular Sequence DataModels, BiologicalPulmonary Surfactant-Associated Protein CAir PressureRespiratory Distress Syndrome, AdultInstillation, DrugRespiratory SystemMarsupialiaLactationPulmonary Gas ExchangePulmonary CirculationPneumocytesSpecies SpecificityPleuraPhylogenyAnimals, NewbornMicroscopy, ElectronBronchoalveolar LavageRespiratory MechanicsPulmonary Surfactant-Associated Protein ATidal VolumeLung InjuryCleft LipProteolipidsHyperoxiaMaxillary NeoplasmsPulmonary EmphysemaRespirationBlood-Air BarrierTotal Lung CapacityBiological EvolutionPneumoniaTherapeutic IrrigationTracheaMice, Inbred C57BLRespiratory MucosaPhysicsEmphysemaAmino Acid SequenceWeightlessness SimulationLipidosesCapillariesHistological TechniquesRodentiaPulmonary FibrosisVentilator-Induced Lung InjuryEvolution, MolecularPinnipediaTooth Eruption, EctopicHeliumReptilesPregnancyDogsParticle SizeTime FactorsHemosiderosisCetaceaRats, Sprague-DawleyBronchopneumoniaAirBase SequenceImmunohistochemistrySilicon DioxideMannheimia haemolyticaRNA, MessengerPulmonary Surfactant-Associated Protein BElastinDisease Models, AnimalShrewsGene Expression Regulation, DevelopmentalInsectivoraOxygenRespiration, ArtificialBirdsMice, TransgenicAcute Lung Injury