Muscular System

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Across
  1. 4. calf muscle
  2. 5. muscles that move quickly
  3. 7. is both voluntary and involuntary
  4. 11. chest muscles
  5. 12. flexes hip
  6. 14. when muscles lengthen
  7. 17. shoulder muscles
  8. 18. connects bone to bone
  9. 19. muscles that move the body
  10. 20. involuntary muscle lining stomach
  11. 21. when muscles shorten
Down
  1. 1. heart muscle
  2. 2. moves mouth
  3. 3. straightens knee
  4. 6. straightens elbow
  5. 8. bends elbow
  6. 9. flexes knee
  7. 10. wrinkles forehead
  8. 13. muscles used in endurance activities
  9. 15. when muscles contract but do not move
  10. 16. attaches muscle to bone