The Respiratory System

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Across
  1. 4. The voice box of the body
  2. 7. System Picks up oxygen as we inhale and releases carbon dioxide as we exhale
  3. 9. One in _____ people are affected by COPD
  4. 10. The lung is the only organ that can float in _____
  5. 12. Entry point for air. Filters and humidifies incoming air
  6. 14. The most common cause for COPD
Down
  1. 1. Known as the windpipe
  2. 2. Riskiest treatment to for COPD
  3. 3. This muscle contracts and releases during breathing
  4. 5. COPD is the 3rd-leading cause of ____ worldwide
  5. 6. The age at which COPD is usually diagnosed: over ____ years old
  6. 8. The most popular treatment for COPD
  7. 9. COPD results in irritation and _____ of the lungs
  8. 11. Symptoms of COPD include: Wheezing, Trouble breathing, and a _____
  9. 13. The respiratory system is also used to regulate this ____ pH