skeletal terms

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Across
  1. 3. lower leg bone
  2. 4. breastbone
  3. 5. protects internal organs
  4. 6. back feet
Down
  1. 1. backbone
  2. 2. upper leg bone
  3. 4. protects the brain
  4. 6. front feet
  5. 7. help moves tail, protects spine