1. 100’s of free ppt’s from www.pptpoint.com library

2. actin and myosin dr shabeel pn www.hi-dentfinishingschool.blogspot.com

3. actin

4. actin troponin

5. actin troponin tropomyosin

6. actin troponin tropomyosin

7. actin troponin tropomyosin myosin binding site

9. Ca 2+ Ca 2+ Ca 2+ Ca 2+

10. Ca 2+ Ca 2+ Ca 2+ Ca 2+ Calcium ions are released from the sarcolemma after stimulation from the T system

11. Ca 2+ Ca 2+ Ca 2+ Ca 2+

12. Ca 2+ Ca 2+ Ca 2+ Ca 2+ the calcium ions bind to the troponin and changes its shape

13. Ca 2+ Ca 2+ Ca 2+ Ca 2+ the calcium ions bind to the troponin and changes its shape

14. Ca 2+ Ca 2+ Ca 2+ Ca 2+

15. Ca 2+ Ca 2+ Ca 2+ Ca 2+

16. Ca 2+ Ca 2+ Ca 2+ Ca 2+ the troponin displaces the tropomyosin and exposes the myosin binding sites

17. Ca 2+ Ca 2+ Ca 2+ Ca 2+

18. Ca 2+ Ca 2+ Ca 2+ Ca 2+

19. Ca 2+ Ca 2+ Ca 2+ Ca 2+ the bulbous heads of the myosin attach to the binding sites on the actin filaments

20. Ca 2+ Ca 2+ Ca 2+ Ca 2+

21. Ca 2+ Ca 2+ Ca 2+ Ca 2+

22. Ca 2+ Ca 2+ Ca 2+ Ca 2+ the myosin heads change position to achieve a lower energy state and slide the actin filaments past the stationary myosin

23. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i

24. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i

25. Ca 2+ Ca 2+ Ca 2+ Ca 2+ ATP binds to the bulbous heads and causes it to become detached A P i P i P i A P i P i P i A P i P i P i

26. Ca 2+ Ca 2+ Ca 2+ Ca 2+ ATP binds to the bulbous heads and causes it to become detached A P i P i P i A P i P i P i A P i P i P i

27. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i hydrolysis of ATP provides the energy to “re-cock” the heads

28. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i hydrolysis of ATP provides the energy to “re-cock” the heads

29. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i

30. Ca 2+ Ca 2+ Ca 2+ Ca 2+ A P i P i P i A P i P i P i A P i P i P i calcium ions are re-absorbed back into the T system

31. Ca 2+ A P i P i P i A P i P i P i A P i P i P i calcium ions are re-absorbed back into the T system

32. Ca 2+ A P i P i P i A P i P i P i A P i P i P i the troponin reverts to its normal shape and the tropomyosin move back to block the myosin binding sites

33. Ca 2+ A P i P i P i A P i P i P i A P i P i P i the troponin reverts to its normal shape and the tropomyosin move back to block the myosin binding sites

34. Ca 2+ A P i P i P i A P i P i P i A P i P i P i the troponin reverts to its normal shape and the tropomyosin move back to block the myosin binding sites

35. Ca 2+ A P i P i P i A P i P i P i A P i P i P i phosphocreatine regenerates ATP

36. Ca 2+ A P i P i P i A P i P i P i A P i P i P i phosphocreatine regenerates ATP

37. Ca 2+ A P i P i P i A P i P i P i A P i P i P i phosphocreatine regenerates ATP