Respiratory System Review

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Across
  1. 2. You do this when something irritates your diaphragm
  2. 4. Large muscle that controls the lungs
  3. 6. One of the two places where air enters your body (yes I am aware that there are two of this question; they have different answers)
  4. 7. All animals need to inhale this gas to make energy for food
  5. 9. When something irritates your nose or your body is trying to get rid of an infectious agent
  6. 11. Prevents food from going down into your lungs;(found in digestive system as well)
  7. 14. An airway that connects the nose and lungs
  8. 16. When we exhale, we breathe this plus carbon dioxide
  9. 17. One of the two places where air enters your body
Down
  1. 1. Common name for trachea
  2. 3. A waste gas you breathe out
  3. 5. Tiny thin walled sacs of lung tissue where gases can move between air and blood​
  4. 8. Main organs of the respiratory system
  5. 10. Another term for breathe out
  6. 12. You do this when you don't get enough oxygen to your blood
  7. 13. Scientific name for windpipe
  8. 15. You do this when something irritates your trachea or bronchi