Across
- 4. this word means to breathe in
- 7. this is the system through which we breathe
- 8. this means to breathe out
- 10. this organ allows you to breathe in and also to eat
- 11. this is a sticky substance we have in our nostrils and also our lungs that filter out germs and particles
Down
- 1. this organ is also called the windpipe
- 2. this is what we breathe out
- 3. this is what we breathe in
- 5. this organ allows us to breathe in as well as smell
- 6. the dome-shapes muscle under our lungs that contract and relax when we breathe
- 9. this is the big organ inside our chests where air is exchanged