Skeletal & Muscular system

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Across
  1. 1. limited rotation
  2. 3. deterioration of a joint
  3. 7. provides attachment to body
  4. 8. joint that allows movement
  5. 10. shrink in size and loose strength
  6. 11. the state of partial contraction
  7. 12. upper back and neck
  8. 13. surrounds the mouth
  9. 15. allows muscles to return to their original shape
  10. 16. forms the wall of the heart and contacts to circulate
  11. 17. ligaments are stretched
  12. 18. curvature of the spine
  13. 20. formation of a bone
  14. 21. to break a bone
Down
  1. 2. muscles you contract when you want to move
  2. 4. joint between elbow/knee
  3. 5. connect muscles to bone
  4. 6. bone thinning disease
  5. 9. dense bone tissue
  6. 10. inflammation of joints
  7. 14. forms the walls of internal muscles
  8. 15. word for ability to be stretched?
  9. 18. inside compact bones
  10. 19. contract automatically