Across
- 2. this is your voicebox
- 5. this is a harmful waste gas that you have to get rid of
- 7. these are like small tree branches
- 8. these are surrounded by your ribcage
Down
- 1. these are a big part of the gas exchange
- 3. the windpipe
- 4. dome shaped muscle that rests on your lungs
- 6. little hairs inside your bronchial tubes that help remove unwanted matter from your lungs