Across
- 2. cytoplasm of the muscle fiber
- 6. part of sarcolemma that interacts with synaptic terminal
- 7. sarcoplasmic reticulum, T-tubule, & cisternae
- 8. twisted strand of G-actin
- 12. branch of NMJ that interacts with sarcolemma
- 13. collagen fibers, outermost layer
- 14. in-between F-actin rows, holds them together
- 15. protein filaments (2 types, thick & thin)
- 17. membrane complex of muscles cells, form tubular network
- 18. divided into fascicles, made of collagen & elastic fibers, middle layer
- 19. area between synaptic terminal and motor end plate
- 21. toxin causes nervous system to be unable to stimulate muscles
- 22. cell in skeletal muscle
- 24. plasma membrane of the muscle fiber
Down
- 1. site of communication between nervous and muscular systems
- 3. bundles of protein filaments, muscle contraction from shortening
- 4. surrounds individual muscle cells, collagen & elastic fibers, innermost layer
- 5. bundle of muscle fibers
- 9. 3 globular subunits, binds with tropomyosin, which opens G-actin active site
- 10. enlargement of sarcoplasmic reticulum around T-tubule
- 11. stiffening after death
- 16. composed of myosin
- 20. composed of actin
- 21. narrow tubes that navigate through membrane, deliver electrical impulses
- 23. covers G-actin active sites, prevents interaction with myosin