Answer:
Nose or nasal cavity, oral cavity or mouth, pharynx,larynx, wind pipe i.e both left and right bronchi, bronchioles, alveoli and lungs.
Step-by-step explanation:
Air which contain oxygen pass through the nasal cavity, it then move to the pharynx or mouth, through the glottis. The air or oxygen then pass through trachea or windpipe and move to the left and right bronchi, it then move to the alveoli which is the site of gas exchange. Oxygen is absorbed into the blood and the carbondioxide is removed from the blood through the lungs.