Respiratory systemРAnatomyР鼻Р咽Р喉Р环状软骨Р气管Р支气管Р肺Р上呼吸道Р下呼吸道РRapid gas exchange ?Ventilation?Perfusion ?Diffusion ?Cleaning the air ?Alveoli(300 million alveoli in two adult lungs, provide a surface area of some 160 meters square ) ?Surporting structure?Elastic recoilРStructure and function General ConsiderationsР(1) ?the conducting airways ? (dead air space)Р(2) the gas exchange portionsР气管Р粘膜层Р粘膜下层Р外膜Р上皮( 纤毛柱状)Р固有膜РCiliated cellРMucous cellРsIgAР纤毛粘液排送系统РMucous, serous and mixed glandsРCartilaginousРEpitheliumРPseudostratified ciliated columnar cells ? Mucous (goblet) cellsРBronchial Submucosal Glands
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