Across
- 2. Thin filaments consist of actin, tropomyosin, and?
- 3. What phenomena occur when tension isn’t maintained by the muscle?
- 5. During cross-bridge activity, the bending of the cross-bridge and the pulling of thin myofilament is known as?
- 9. ATP is derived from Oxidative Phosphorylation, Creatine Phosphate, and what other metabolic source?
- 10. Which unit of the muscle cell is responsible for contraction?
- 11. To prevent/delay fatigue motor units are recruited
- 13. What is the name of a contraction that is very short and weak?
- 14. What happens when the thick and thin filaments within the sarcomere slide past each other?
- 19. Which proteins are ryanodine receptors and Ca²⁺ release channels?
- 20. During muscle contraction what component in the sarcomere remains the same length?
- 22. What muscle is responsible for voluntary movement?
- 24. The sarcoplasmic reticulum surrounds the T-tubules and?
- 25. What becomes shorter during muscle contraction and contains myosin?
Down
- 1. The transverse tubule contains receptors that come into contact with foot proteins these are known as?
- 4. What is responsible for stimulating the skeletal muscle to contract at neuromuscular junctions?
- 6. What muscle is used for chewing and is the strongest?
- 7. Which muscle is striated and involuntary?
- 8. What component largely makes up thick filaments?
- 12. During smooth muscle excitation coupling Ca²⁺ binds to?
- 15. What protein blocks the binding sites on actin molecules?
- 16. Which molecule is responsible for binding to myosin cross bridges?
- 17. What is the name of a contraction that doesn’t have relaxation between stimuli?
- 18. If we wanted precise movements during contraction would small or large motor units be recruited?
- 21. Which filament is made up of tropomyosin, actin, and myosin?
- 23. During which step of the cross-bridge cycle is Pᵢ released?