Across
- 3. Muscle group that works against another muscle group.
- 5. Involved in excitation-contraction coupling, contains a domain for ATP hydrolysis.
- 6. This muscle is often found in the walls of digestive organs and glands.
- 9. Involved in calcium induced calcium release.
- 10. Strategy of force regulation, increase frequency of AP.
- 12. ___ would decrease the activity of myosin light chain kinase.
- 13. Important ion involved in excitation-contraction coupling.
- 15. These molecules form a filament and also contain a binding site for the myosin heads.
- 16. Visual representation of layered thick and thin filaments.
- 19. Protein that sequesters calcium in SR.
- 20. Chemical signals used between neurons or neurons and muscle.
- 22. Important site for calcium storage.
- 23. Activity of this protein allows crossbridging in smooth muscle.
- 25. One source of calcium influx for heart muscle
- 27. Basic contractile unit of muscle
Down
- 1. Chief neurotransmitter released by motor neurons.
- 2. This muscle maintains striations, while also possessing intercalated disks.
- 4. Junction which separates motor neurons from skeletal muscle.
- 7. Important site for calcium storage.
- 8. Activating PKA causes this protein to increase the SR calcium pump in cardiac muscle.
- 11. Intrinsic property of the heart to beat on its own.
- 14. Calcium binds this protein. Exposing the actin-myosin binding site.
- 17. Source of electrical stimulation for the heart.
- 18. This muscle responds to calcium solely from intracellular stores.
- 21. Structure found at intercalated disks. Grants mechanical strength.
- 24. Strategy of force regulation, activate more motor neurons.
- 26. Extension of plasma membrane into myofibril.