Bones and muscles

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Across
  1. 1. The muscle in your inner thigh
  2. 4. R in RUM
  3. 6. What you use to chew
  4. 8. The bone group that makes up your spine
Down
  1. 2. The one horizontal laying bone in your body
  2. 3. Biggest bone in the body
  3. 5. Also know as your hip flexor
  4. 7. Also known as the skull