The Human Skeleton

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Across
  1. 2. ____ percent of animals are vertebrates.
  2. 4. Bone is living ____.
  3. 8. Biggest joint
  4. 9. The smallest bone in the body is in your ear.
  5. 11. Bones can absorb 2 to 3x times your ____.
  6. 12. ____ are born with 300 bones.
  7. 13. Protects brain.
  8. 15. Weakest bone.
  9. 16. Most flexible joint.
  10. 18. Bone that is shaped like a horseshoe
  11. 19. Upper jawbone only in vertebrates
Down
  1. 1. ____ are stronger then bones.
  2. 3. Protects and supports spinal chord.
  3. 5. A cubelike bone
  4. 6. An extra rib is called a ____ rib.
  5. 7. The first prosthetic bone was developed by ____.
  6. 10. Protects vital organs.
  7. 13. Your ____ is made of over 200 bones.
  8. 14. Largest bone.
  9. 17. ____ your bones are in your hands and feet