Skeletal System

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Across
  1. 5. bone Hard, dense outer layer of bone
  2. 7. Internal skeleton made of bone and cartilage
  3. 11. External skeleton made of chitin or calcium carbonate
  4. 14. Tissues that connect bone to bone
  5. 15. Bone structure that protects the brain
Down
  1. 1. Large upper leg bone
  2. 2. system Body system that supports and protects the body
  3. 3. Bone structure different between males and females
  4. 4. marrow Soft tissue inside bones that produces blood cells
  5. 6. Bones of limbs and girdles used for movement
  6. 8. bone Porous, less dense bone tissue
  7. 9. Lower leg bone often called the shin bone
  8. 10. Places where two bones meet and allow movement
  9. 12. Bones along the body’s center that protect organs
  10. 13. Tissues that connect muscle to bone