Muscular System Crossword

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Across
  1. 1. muscle lining organs
  2. 6. A-M connection
  3. 8. thin filament
  4. 11. actin & myosin
  5. 12. automatic contraction
  6. 13. stored in sarcoplasmic reticulum
  7. 14. end of sarcomere
  8. 15. contractile unit of muscle cells
  9. 16. Sarcoplasmic ___________: tube network surrounding myofibrils
  10. 18. controllable contraction
  11. 20. support function
  12. 21. encapsulates muscle
  13. 23. fibrous connective tissue
  14. 24. M Line + myosin
  15. 26. muscle fiber cell membrane
  16. 29. rhythmic, wavelike contraction
  17. 31. shorten
  18. 33. thick filament
  19. 34. main function
  20. 35. lengthen
  21. 36. muscle attached to bones
  22. 37. extension of sarcolemma into myofibrils
  23. 38. myosin attachment
Down
  1. 2. made of myofilaments
  2. 3. long, slender fibers that contract when stimulated
  3. 4. muscle of heart
  4. 5. proximal muscle attachment
  5. 7. encapsulates each muscle fiber
  6. 9. skeletal muscle cell level
  7. 10. bundles of muscle fibers
  8. 12. distal muscle attachment
  9. 15. appearing striped
  10. 17. surrounds each fascicle
  11. 19. 85% of ______ production
  12. 22. skeletal muscle tissue level
  13. 25. cyotplasm
  14. 27. skeletal muscle organ level
  15. 28. band with overlapping A & M filaments
  16. 30. band containing only actin
  17. 32. bundle of fascicles