The Skeletal and Muscular Systems

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Across
  1. 3. blood cell production in bone marrow cavities
  2. 5. longest and strongest bone in the body
  3. 8. shoulder muscle
  4. 9. has a relaxing affect on muscles
  5. 10. the brain is protected by
  6. 12. lower leg/calf muscle
  7. 14. accumulation of this can cause muscle to quiver and stop contracting
  8. 15. a function of the muscular system
Down
  1. 1. a function of the skeletal system
  2. 2. joint between the bones of the skull
  3. 4. brittle bone disease
  4. 6. upper arm bone
  5. 7. kneecap
  6. 11. a function of the skeletal system
  7. 13. muscle found only in the heart wall