Skeletal System

12345678910111213
Across
  1. 2. the outer layer
  2. 4. structures that can contract and stretch
  3. 9. connect muscle to bone and allows the muscle to pull on the bone
  4. 10. one muscle contracts the other muscle relaxe
  5. 12. where two bones meet
  6. 13. for movement
Down
  1. 1. keeps the bones of the joint from moving too far apart
  2. 3. the spongy tissue in certain bones
  3. 5. a lubricant for bone ends, allowing them to slide over each other
  4. 6. for protection
  5. 7. smooth material covering the ends of bones moving against each other
  6. 8. a hard structure that protects the internal organs of a living thing
  7. 11. the inner bone