Across
- 4. An organelle that makes energy
- 7. Where your bones meet
- 8. A chemical reaction in your cells that produces energy
- 9. Keeps your body upright
- 10. Attached to your bones, elastic
- 11. Attached to your bones, inelastic
- 12. Contracts and relaxes
Down
- 1. What’s exhaled
- 2. Flexible, connective bone tissue
- 3. A dome-shaped muscle under your lungs
- 5. What’s inhaled
- 6. A condition prohibiting movement