Nose, Filters, warms and humidifies inspired air, Pharynx, Shared passage connecting nose and mouth toward larynx and oesophagus, Larynx, Protects the airway and contributes to voice, Trachea, Conducts air toward the bronchi, Bronchi, Carry air into each lung, Bronchioles, Distribute airflow within the lungs, Alveoli, Primary site of pulmonary gas exchange, Diaphragm, Main muscle of quiet inspiration

Airway Structure Function

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