station 12

3. the main organ of the respiratory system
4. the process of breathing
9. the process of exhaling
10. a chronic, progressive, and incurable lung disease that causes difficulty breathing
11. the coughing up of blood from the respiratory tract
13. causes coughing and breathing
15. mucus coughed up from the lungs
16. air passage that goes from the throat to the bronchi

1. The respiratory system's main job is to move fresh air into your body while removing waste gases.
2. the process the inhaling
5. allows air to enter your body, then filters debris and warms and moistens the air.
6. results from smoking and chronic breathing
7. branches of the passages of the respiratory system that lead from the trachea to the lungs
8. an irritation and inflammation of the lining of the bronchi
12. contagious lung disease caused by a bacterium that is transmitted through air
14. brings air into the lungs