Describe in detail the route an inhaled oxygen molecule will follow from the atmosphere to the alveoli.

Stumped on this question , I feel that it's easy and I know the answer I just need a point in the right direction.

Think it is something like

Atmosphere -> Mouth -> Throat -> Trachea -> Bronchi -> Bronchioles -> Aveoli

Seems about right , I think it's missing a few thing a but I can work off that . Thanks