Respiratory System - "Breathing"

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Across
  1. 1. found on epithelial cells in your airways that function to sweep mucus and dust out of the airways
  2. 6. differences in air ______, determine the direction in which air moves
  3. 8. process in which air is forced into the lungs
  4. 11. also known as the chest cavity
  5. 12. while breathing out, ribcage moves inward & _____
  6. 14. two of these branch from the "windpipe" into each of your lungs (plural term)
  7. 16. process in which air is forced out of the lungs
  8. 17. vocal cords are found here
  9. 18. pressure of this organ changes during "breathing"
Down
  1. 2. the contraction and relaxation of this set of muscles brings about the movement of the ribcage
  2. 3. back of the throat region where both air and swallowed food may pass across
  3. 4. while breathing in, ribcage moves upward & _____
  4. 5. another term to describe "breathing"
  5. 7. flatten sheet of muscle; it contracts when you breathe in & relaxes when you breathe out
  6. 9. (plural) site of gaseous exchange
  7. 10. (singular) site of gaseous exchange
  8. 13. also known as "windpipe"
  9. 15. type of cell that produces mucus