Respiratory System

1234567891011121314
Across
  1. 5. The system that helps you breathe.
  2. 6. We use this to smell.
  3. 9. These fill up when you breathe in.
  4. 12. Your alveoli do this when you breathe in
  5. 13. 78% of what you breathe in.
  6. 14. 21% of what you breathe in.
Down
  1. 1. The hollow tube that starts behind the nose, goes down the neck, and ends at the top of the trachea.
  2. 2. We use this to eat, talk, or chew.
  3. 3. What you have to do to live.
  4. 4. Large airways that lead to the lungs. (Also called a windpipe).
  5. 7. Your alveoli do this when you breathe out.
  6. 8. The area of the throat containing the vocal cords and used for breathing, swallowing, and talking. Also called voice box.
  7. 10. Where the gasses go when you breathe in.
  8. 11. dioxide The gas we breathe out.