Respiratory System

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Across
  1. 2. Also known as the air sacs.
  2. 5. Monoxide A dangerous gas that can be fatal (in high concentrations)
  3. 7. Known as the windpipe.
  4. 8. The physical process of gas exchange in the
  5. 9. Blood vessel that helps with gas exchange between the blood and body
  6. 11. A disease caused by bacteria/virus that makes the bronchi swollen.
  7. 12. The act that allows harmful substances into the lungs
  8. 15. Gas exchange between the blood and environment.
  9. 16. The gas that we breathe in.
Down
  1. 1. Can cause cancer
  2. 3. The main organ of the respiratory system
  3. 4. Process of taking in air.
  4. 6. A muscle that helps with breathing.
  5. 8. Found in haze, a harmful substance that makes it harder to breathe.
  6. 10. The protein in blood allowing blood the carry oxygen
  7. 13. Uncontrollable cell growth
  8. 14. Process of taking air out of the body.