respiratory system
Across
- 3. this helps u take in air
- 5. air go in this pipe and it filters it
- 6. this is a curved organ which extracts
- 7. it is a small air sac which gives oxygen to the pulmonary atery and gives out carbon dioxide
Down
- 1. this part is a pipe which lets air go into the lungs
- 2. these are tiny hair which collect dust particles
- 4. this part helps u breathe