THE SKELETAL SYSTEM

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Across
  1. 4. runs down the back of your body
  2. 6. Muscles that are not in our control
  3. 7. The bones of our head
  4. 8. The 33 ring shaped bones
Down
  1. 1. The way we keep our body
  2. 2. The places where the two bones are held together.
  3. 3. The jelly-like substance inside the bone
  4. 5. The bones move with their help