Across
- 2. – Tiny air sacs where oxygen and carbon dioxide are exchanged.
- 7. – Tubes that branch from the trachea to the lungs.
- 8. – The body system that helps us breathe.
- 9. – The throat where air passes.
Down
- 1. – The windpipe that carries air to the lungs.
- 3. – Organs where gas exchange happens.
- 4. – The voice box with vocal cords.
- 5. – A muscle that helps us breathe in and out.
- 6. cavity – The part of the nose that cleans and warms the air.