Across
- 2. a protein that makes up bones
- 5. a strong, stretch tissue that connects bones at joints
- 7. an injured ligament
- 10. organ that stores urine
- 12. place where two bones come together
- 13. tubes that carry urine from the kidneys to the bladder
- 14. when a muscle gets shorter
- 15. the inside of bones, where blood cells are made
- 16. when bones separate at a joint
Down
- 1. tube that carries urine out of the body
- 2. a smooth, flexible tissue that covers bones at joints
- 3. organ that filters extra water and minerals out of blood
- 4. a mineral that coats bones and makes them hard
- 6. excess water and minerals filtered out by the kidneys
- 7. muscle tissue that is under a person's control
- 8. the name for a broken bone
- 9. muscle tissue in the digestive and other systems
- 11. muscle tissue in the heart