The Respiratory System

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Across
  1. 4. pharyngitis
  2. 6. the separating wall between right and left nasal cavities in the nasal septum
  3. 8. the voice box, made mostly of cartilage
  4. 9. the one quart of air you keep in your lungs
  5. 10. the cold is a _____
  6. 11. another word for 'nostrils'
  7. 12. tiny hair-like projections on mucosa that propel mucus upward
  8. 13. breathing air out
  9. 14. cells that make mucus
  10. 16. made of 78% nitrogen and 21% oxygen
Down
  1. 1. the medical term for the throat
  2. 2. found at the back of the throat, these are lumps of tissue that fight infection for you
  3. 3. blowing too hard can force mucus up the Eustachian tube and cause a ______________
  4. 5. breathing air in
  5. 7. when tonsils swell to fight off disease
  6. 15. the sinus is connected to the nose through a tiny hole called the ______