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The nostrils, Trachea, Bronchi, Lungs, Alveolus, Diaphragm
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There are 3 major parts of the respiratory system :the air way,the lungs,and the muscles of respiration.the airway which includes the nose,mouth,pharynx,larynx,trachea,bronchi,and bronchioles,carries air between the lungs and body 's exterior.
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