copd

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