Skeletal topic crossword

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Across
  1. 3. stretchy bands that cause the bones to move
  2. 6. made up of small bones, which gives the body flexibility and protects nerves that run inside it
  3. 8. smooth substances that stops bones rubbing together
  4. 10. where 2 bones meet
  5. 11. example of a ball and socket joint
  6. 12. needed to keep bones strong
  7. 13. muscle that causes the arm to bend
Down
  1. 1. type of joint (eg knee)
  2. 2. attaches bones together
  3. 4. when muscles get shorter and thicker
  4. 5. attaches muscles to bones
  5. 7. part of a balanced diet, for making new cells
  6. 8. type of muscles found in the heart
  7. 9. bone that connects breastbone to the spine
  8. 11. example of a fixed joint in the body