Across
- 3. fatigue prone muscle type
- 5. organelle responsible for Calcium flow of muscle cells
- 6. thin contractile myofilament
- 9. embryologic origin of muscle ells
- 10. deep invagination of sarcolemma
- 12. repeating units consisting of myosin and actin
- 14. Skeletal muscle cell composed of myofibrils
- 16. protein disc where actin anchors
- 19. fast-contracting, fast fatigue, glycolytic muscle
- 22. light zone composed of actin filaments
- 23. twitch associated with aerobic muscle metabolism
- 24. thin regulatory myofilament
- 26. connective tissue layer wrapping a fascicle
- 27. cylindrical bundles of contractile proteins
Down
- 1. stem cells that function in muscle repair
- 2. fatigue resistant muscle type
- 4. contractile/functional unit of myocyte
- 7. Skeletal muscles contract _____________
- 8. twitch associated with anaerobic muscle metabolism
- 10. mixed oxidative-glcolytic; slow fatigue muscle
- 11. dark zone created by actin and myosin overlap
- 12. protein within muscle that helps to transfer oxygen
- 13. muscle type with multiple, peripherally located nuclei
- 15. connective tissue layer surrounding a group of fascicles
- 17. plasma membrane of the muscle cell
- 18. cytoplasm of muscle cells
- 20. reticular fiber layer surrounding individual myocytes
- 21. thick contractile myofilament
- 25. thin calcium binding myofilament