Respiratory System

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Across
  1. 2. Transports air in and out of the lungs
  2. 7. Damages airways and causes many health issues relating to the respiratory system, including lung cancer
  3. 8. system that circulates oxygen through the body and disposes of carbon dioxide
  4. 9. Large, dome-shaped muscle in the lower chest
  5. 11. primary external opening for the respiratory tract, detects odor and helps warm the air we inhale
  6. 13. Smaller sacs that make up the lungs
  7. 14. Small hairs lining the trachea and bronchi
Down
  1. 1. secondary external opening for the respiratory tract can replace functions of the nasal cavity
  2. 3. A type of cancer caused primarily by smoking
  3. 4. Deliver air to the alveoli
  4. 5. Trachea branches off into 2 lungs via these
  5. 6. Waste gas exchanged with oxygen
  6. 10. Exchanged with carbon dioxide in the alveoli
  7. 12. Causes muscles in airway to tighten, making breathing very difficult