Across
- 1. – The voice box.
- 5. – The throat where air passes.
- 6. cavity – Cleans and warms the air.
- 8. – A muscle that helps breathing.
- 9. – Tiny air sacs for oxygen exchange.
Down
- 2. The body system that helps us breathe.
- 3. – Organs where gas exchange happens.
- 4. – Tubes that lead air into the lungs.
- 7. – The windpipe that carries air.