Across
- 2. When oxygen enters and co2 leaves
- 4. It helps you to breathe and digest food
- 6. Another word for the chest
- 7. what expands and contracts to take in oxygen
- 11. muscles that present within the rib cage
- 13. The amount of air that enters and exits the lungs
Down
- 1. How quickly you breathe
- 3. What is breathing out called
- 5. The space inside the nose
- 8. What do muscles do to support?
- 9. What is breathing in called
- 10. the major muscle of respiration.
- 12. The capacity of the lung
- 14. What you breathe in