Trachea - Tube which transports air from mouth to bronchi, Bronchi - Pair of tubes which transport air from trachea to bronchioles, Bronchioles - Small tubes which transport air from bronchi to alveoli, Alveoli - Site of gas exchange in the lungs, Ribcage - Protects the lungs, Diaphragm - Muscle which helps to inflate and deflate the lungs,

Respiratory system crossword

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