Skeletal System

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Across
  1. 2. internal skeleton of an animal
  2. 4. soft connective tissue inside the bone
  3. 7. softening of bones due to lack of vitamin D
  4. 9. attach bone to bone
  5. 12. side to side curve in the spine
  6. 13. makes up the dense outer layer of the bone
  7. 14. found inside the bone and it is lighter and less dense
Down
  1. 1. loss of bone tissue
  2. 3. tough,fibrous membrane that covers and protects the outer layer of the bone
  3. 5. hold the skeleton together and allow movement
  4. 6. protects the body tissue and internal organs
  5. 8. inflammatory disease that damages joints and surrounding tissue
  6. 10. external skeleton of an animal
  7. 11. attach muscle to bone