1. Trace the pathway of air from the time it enters the nose until it reaches the alveolus. Nose ______alveolus
2. Identify the two functional zones of the respiratory system and name three of the major organs and the function of each zone.
A) ________________ zone This zone includes _____________ that function in _________. B) ________________ zone This zone includes _________ _________ that function in __________________________ _____________________________________. 3. Identify structures and name functions of the trachea.