Muscles

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Across
  1. 1. Muscle group of the anterior upper leg
  2. 5. thick filaments of a muscle fiber with heads that pull actin
  3. 6. thin filaments of a muscle fiber; pulled by myosin
  4. 8. when muscles become tired
  5. 10. largest single muscle of the body
  6. 12. movement describing bringing away from midline or body
  7. 14. type of muscle for involuntary movement like digestion
  8. 16. muscle group near the shoulders
  9. 17. movement describing increasing angle of joint
  10. 18. examples include actin and myosin
  11. 20. type of muscle for voluntary movement
  12. 24. movement describing bringing towards midline of body
  13. 25. muscle group of the neck and upper central back
  14. 26. the length of the muscle ______ with relaxation
  15. 27. movement describing increasing angle of joint
  16. 28. movement of turning outwards
  17. 29. muscle group also known as the calves
Down
  1. 2. ______ _____ Theory describes how muscles contract
  2. 3. connects bones to bones
  3. 4. muscle group found at the sides of the rectus abdominus
  4. 7. movement of turning inwards
  5. 9. organelle that provides the energy needed for muscle contraction (hint: think back to biology - what organelle makes energy?)
  6. 11. type of muscle that makes up the heart
  7. 13. main function of skeletal muscles
  8. 15. Individual cell of skeletal muscle
  9. 19. connects muscles to bones
  10. 21. the circumference of the muscle _____ with relaxation
  11. 22. muscle group of the posterior upper leg
  12. 23. bundle of muscle fibers