Across
- 3. the smallest structure in the respiratory system
- 4. The "C" in COPD
- 5. the waste product of the respiration process
- 6. divides into two forming the right and left bronchi
- 7. Another first point of air entry
- 9. low concentration of oxygen in the blood
- 10. the right lung has three, left has two
- 11. one of the first points of air entry
Down
- 1. pharmacological medication helps in relieving symptoms
- 2. The "o" in COPD
- 8. dome shaped muscle, aids in respiration