Across
- 1. You do this when something irritaes your tracea or bronchi
- 6. A gas that you breathe out. It is a waste gas.
- 8. You do this when something irritates your nose
- 11. This prevents food from going down your lungs (throat)
- 15. Two tubes that connect the trachea to the lungs
- 16. Large muscle that controls the lungs
- 18. Common name for trachea
- 19. One of the two places where air enters your body
Down
- 2. All animals need this gas to make energy from food
- 3. Scientific name for windpipe
- 4. Fish have these instead of lungs
- 5. One of two places where air enters your body
- 7. Inhale and exhale
- 9. Breathe out
- 10. You do this when something irritates your diaphragm.
- 12. What we breathe
- 13. breathe in
- 14. You do this when you don't get enough oxygen to your blood
- 17. The place where oxygen enters the blood
- 18. When we exhale, we breathe this plus carbon dioxide
