Respiratory System and Air Quality

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Across
  1. 2. Overall location of lungs in the chest. (two words)
  2. 5. Thin layer of tissue that covers both your lungs.
  3. 6. Gas expelled during exhalation. (two words)
  4. 8. Tiny air sacs in your lungs where oxygen is brought into the blood.
  5. 10. Color of lungs after excessive smoking.
  6. 12. Medical condition that refers to shortness of breath.
  7. 13. Fine hairs in the nasal cavity that filter particles in the air.
  8. 14. The side of the lung with three lobes: (_) lung
  9. 15. It is addictive but harms your lungs.
Down
  1. 1. Abbreviation of World Health Organization.
  2. 3. Name of the body system the bronchi reside in.
  3. 4. Tube surrounded by rings of cartilage.
  4. 6. Air that keeps your lungs healthy: (_) air
  5. 7. Muscle of the respiratory system.
  6. 9. Name of pollution from transportations like cars: (_) pollution
  7. 11. Lacking it causes shortness of breath.