Question

What is the pathway of air into the body?

Answer 1

The pathway of air into the body:

1. Air enters the body via the nostrils or mouth.
2. Air then travels down the throat via the larynx and trachea.
3. Air goes into the lungs via the main-stem bronchi.
4. One main-stem bronchus ends in the left lung and one in the right lung
5. In the lungs, the main-stem bronchi divide into smaller bronchi.
6. The smaller bronchi divide into even smaller tubes (bronchioles).
7. Bronchioles lead to tiny air sacs (alveoli) in which the trade of oxygen and carbon dioxide occurs.
8. Oxygen from inhaled air combines with the hemoglobin present in the blood and travels throughout the body to reach every cell.