'Air enters the lungs through these two tubes which are extensions of the trachea'
Bronchial Tubes
THE BODY HUMAN: Air enters the lungs through these two tubes which are extensions of the trachea
Air enters the lungs through these two tubes which are extensions of the trachea
Air enters the lungs through these two tubes which are extensions of the trachea
THE BODY HUMAN
Bronchial Tubes
THE BODY HUMAN