Bones of the World

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Across
  1. 3. thigh bone
  2. 6. you chew with your...
  3. 7. strict
  4. 8. where your backpack straps rest
  5. 10. butterfly shape
Down
  1. 1. rests below the phalanges
  2. 2. "I bumped my head"
  3. 4. ridiculous
  4. 5. heart protector
  5. 9. some dogs wear this bone