The respiratory System
Across
- 4. A respiratory illness
- 8. Muscle under ribs that help with breathing
- 9. Voice box
- 11. taking in air in the lungs
- 12. Tiny branches in the lungs
Down
- 1. A waste gas from respiration
- 2. breathing out air
- 3. Using oxygen and glucose to produce energy
- 5. Stops food from gong the wrong way
- 6. Takes air to the bronchi
- 7. Where gas exchange takes place in lungs
- 10. Allows both air and food to pass through this