Across
- 1. anchored to actin
- 4. thin fillaments
- 7. contains only actin
- 9. location for calcium storage
- 10. thick fillaments
- 11. outer layer of muscle fibers
- 12. contains only myosin
- 14. carry action potential deep into muscle fiber
Down
- 2. muscles' cell membrane
- 3. cytoplasm of muscle cell
- 5. covers active site on the fillaments
- 6. basic contractile element of skeletal muscle
- 8. inner layer of muscle fibers
- 13. sheath of connective tissue that groups muscle fibers into bundles