The Skeletal System

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Across
  1. 2. This protects the heart and lungs.
  2. 4. This is the shoulder blade.
  3. 5. The backbone is also called this.
  4. 7. The smaller bone in the lower leg.
  5. 8. The body's largest organ
  6. 10. The breastbone is called this.
  7. 11. Also called the shinbone.
Down
  1. 1. Another name for the skull.
  2. 2. Bone marrow produces ______ blood cells.
  3. 3. The outside of your bones are made of this.
  4. 6. The hipbone is also called this.
  5. 9. The cranium protects this.