Respiratory System

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Across
  1. 5. this couldn't happen without a respiratory system
  2. 7. voice box
  3. 9. tiny hairs
  4. 11. oxygen gets picked up by a molecule called
  5. 14. an inflammation of the lungs
  6. 15. the airtight box that houses the bronchial tree, lungs, heart, and other structures (thorax)
  7. 16. windpipe
  8. 17. the trachea divides into left and right air tubes
  9. 19. separates the chest from the abdomen
Down
  1. 1. also known as the throat
  2. 2. cold most common respiratory infection
  3. 3. larger bronchial tubes become inflamed and an excessive amount of mucus is produced
  4. 4. air fills a large portion of the millions of alveoli in a process called..
  5. 6. dioxide waste gas that is produced when carbon is combined with oxygen
  6. 8. end in tiny air sacs called
  7. 10. the exchange of oxygen from the environment for carbon dioxide from the body's cells
  8. 12. are the main organs of the respiratory system
  9. 13. defend people against germs and microorganisms
  10. 15. tiny blood vessels
  11. 18. long-term, inflammatory lung disease
  12. 20. The lungs also contain elastic tissues that allow them to inflate and deflate without losing shape and are encased by a thin lining called the