Respiratory System

4. Asthma, bronchitis, emphysema, and COPD are all what type of illness?
5. passageway leading from the trachea to the lungs
7. an uncontrolled growth of abnormal cells.
8. the primary _______ of the respiratory system is to take in O2 and give off CO2
9. the part of the respiratory system that produces sound
11. closes when food passes by
14. is moisten, warmed, and filtered as it enters the body
15. the diaphragm ______the thoracic cavity from abdominal cavity

1. part of the respiratory and digestive systems because both food and air pass it
2. the smallest air passageways coming off of the bronchi
3. a virus of the Respiratory System
6. This smoke can lead to lung cancer.
9. carry out the exchange of gases as we breath
10. the muscle that pulls and pushes against the lungs as we inhale and exhale
12. connects the larynx to the right and left bronchus
13. where the gas exchange takes place at the end of the bronchioles