1. 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt Muscle Pot Pourri Types of Muscle The Muscle Fiber Membrane Potential The Protein of Muscle

2. The feature of muscular tissue that is unique to this type of tissue.

3. What is the ability to contract?

4. This is the name of the actual mechanism where actin and myosin moves past one another in muscular contraction.

5. What is the sliding filament mechanism?

6. These three functions of the muscular system are NOT accomplished by skeletal muscle.

7. What are respiration, heart beat and constriction of organs and vessels?

8. Homeostatic temperature regulation results, in large part, by the heat produced by this metabolic reaction of muscular contraction.

9. What is the conversion of ATP to ADP and a Phosphate Group?

10. Extensibility, Contractility, Excitability and Elasticity, as a group

11. What are characteristics of skeletal muscle?

12. The three muscle types

13. What are cardiac, smooth and skeletal?

14. This type of muscle generally comprises about 40% of a person’s body weight.

15. What is skeletal muscle?

16. These types of muscle fibers are striated, but involuntary.

17. What are cardiac muscle fibers?

18. These muscle fibers lack sarcomeres altogether.

19. What are smooth muscle fibers?

20. Of the muscle types, type (s) of muscle that generally contain only one nucleus per muscle fiber.

21. What are cardiac and smooth muscle?

22. This type of muscle fiber is smaller, spindle-shaped and contains a lesser relative amount of actin and myosin.

23. What are smooth muscle fibers?

24. The name of the boundary of the muscle cell.

25. What is the sarcolemma?

26. Structures within the muscle fiber that span the length of the cell and contain actin and myosin.

27. What are myofibrils?

28. Name of connective tissue that surrounds the entire muscle.

29. What is epimysium or fascia?

30. Myofibrils are arranged into repeating units of myofilaments (actin and myosin) which are called

31. What are sarcomeres?

32. Equilibrium reached in the cell when there is no net movement of K + ions out of the muscle cell.

33. What is resting membrane potential?

34. In a relaxed muscle, the charge found in the synaptic cleft.

35. What is a positive charge?

36. The rapid depolarization and repolarization of the sarcolemma.

37. What is an action potential?

38. Type of ion that rushes into a muscle cell to result in the muscle cell depolarization.

39. What are Na + ions?

40. Neurotransmitter responsible for initiating action potential in muscle cell.

41. What is acetylcholine?

42. Two primary proteins of muscle contraction.

43. What are actin and myosin?

44. Subprotein that physically inhibits the binding of myosin heads to actin in a relaxed muscle.

45. What is tropomyosin?

46. Generally 5-8 nanometers thin.

47. What is actin?

48. ATP binds to this protein during muscle contraction.

49. What is myosin?

50. Place where Ca ++ binds to initiate muscle contraction.

51. What is troponin?