Muscular System

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Across
  1. 2. name of the muscle connected to heel bones by Achilles
  2. 6. a muscle that contracts during flexion
  3. 7. a muscle located in the under part of the arm
  4. 8. biceps and triceps muscles work as a ________
  5. 10. muscles that produce movements by working in pairs
  6. 11. organ that controls the muscles
  7. 12. when muscles get shorter
  8. 14. muscles can only move a bone in _____ direction
  9. 15. muscles can only pull not ________
Down
  1. 1. a muscle that contracts during leg flexion
  2. 3. the largest tendons in your body
  3. 4. happens to the biceps during extension
  4. 5. most pair of muscles pull in ___________ direction to allow movement
  5. 9. a muscle located in the upper part of the leg
  6. 13. attaches muscles to bones