muscular system proj.

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Across
  1. 2. muscle cell membrane
  2. 4. attachment of the muscle to the bone that moves
  3. 5. increase angle at a joint
  4. 7. sheath of connective tissue that surrounds an individual skeletal muscle fiber
  5. 8. moves insertion downward
  6. 14. contractile unit of a muscle fiber
  7. 17. covering of muscle
  8. 18. decrease angle at a joint
  9. 19. a protein in a muscle fiber, that together with myosin, is responsible for contraction and relaxation
  10. 20. neurotransmitter chemical released at the ends of nerve cells
  11. 21. attachment of the muscle to the bone that remains stationary
  12. 22. is found in the internal organs of the body such as digestive and respiratory systems and blood vessels and eyes
  13. 25. moves limb toward midline of body
Down
  1. 1. sheath of connective tissue that encloses a bundle of skeletal muscle fibers
  2. 3. the structural and functional unit of a myofibril
  3. 6. a protein that, together with actin, is responsible for muscular contraction and relaxation
  4. 9. rotates bone along its axis
  5. 10. fibrous membrane covering supporting and separating muscles
  6. 11. bundle of muscle fibers
  7. 12. inflammation of a tendon
  8. 13. one of the contractile fibers found within muscle cells
  9. 15. moves insertion upward
  10. 16. cordlike or bandlike mass of white fibrous connective tissue that connects a muscle to a bone
  11. 23. allows muscles to return to its original shape
  12. 24. moves limb away from midline of body
  13. 26. become short and thick which causes movement