Respiratory System

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Across
  1. 3. gas abbreviated CO2
  2. 6. the leaflike cartilage that opens and closes to guide air, food, and water to the right pipe
  3. 8. the ____ & tongue shape vibrations into sound
  4. 10. the body's act of breathing
  5. 11. Wall of cartilage that divides the two nostrils
  6. 13. part of the voice box that vibrates to make sound
  7. 15. AKA The windpipe
  8. 17. breathing in
  9. 19. AKA the voice box
  10. 20. Which lung is bigger?
Down
  1. 1. 2 main divisions of the trachea
  2. 2. Two openings which air enters
  3. 4. where the O2 and CO2 are finally exchanged
  4. 5. upper portion of the throat
  5. 6. breathing out
  6. 7. The respiratory sys consists of lungs & _________
  7. 9. smaller bronchi
  8. 12. AKA the throat
  9. 14. hollow spaces in your nose
  10. 16. hairs that help filter air coming in the nose
  11. 18. gas abbreviated O2