1. Muscle
Tissue
Sarcomere
Muscle
Contraction
Energy &
Muscle
Misc.
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2. What are the 3 types of muscle?

3. Skeletal, cardiac, smooth

4. Describe skeletal muscle in 2 words.

5. Striated, voluntary

6. Describe cardiac muscle in 2 words.

7. Striated, involuntary

8. Describe smooth muscle in 2 words.

9. Non striated, involuntary

10. List 4 functions of muscle tissue.

11. Functions of Muscle Tissue
Producing body movements
Stabilizing body positions
Regulating organ volume
Moving substances w/n body
Producing heat

12. What is a sarcomere?

13. Functional unit of contraction in muscle

14. What 2 main proteins make up the sarcomere?

15. Actin (thin filament) myosin (thick filament)

16. What filaments can be found in the H zone?

17. Thick filaments

18. What is the I band?

19. Band of sarcomere that includes only thin filaments

20. The sarcomere extends between what structures?

21. Z discs

22. Name 2 substances necessary for muscle contraction.

23. Calcium and ATP

24. Where is calcium stored in a muscle fiber at rest?

25. Sarcoplasmic reticulum

26. How do actin and myosin interact during muscle contraction?

27. Myosin head binds to the actin and pulls the actin towards the center of the sarcomere

28. What substance is necessary for myosin to detach from actin?

29. ATP

30. What structures in the sarcomere shorten during muscle contraction?

31. H zone, I band

32. What is the direct source of energy in a muscle fiber?

33. ATP

34. What is the functional unit of contraction?

35. sarcomere

36. What is aerobic respiration?

37. With oxygen, more efficient

38. What is anaerobic respiration?

39. Without energy, causes fermentation

40. What are 2 causes of muscle fatigue?

41. Insufficient ATP, lactic acid build up

42. What is the name of the cytoplasm of a muscle cell?

43. sarcoplasm

44. What makes up a motor unit?

45. A motor neuron and all the muscle fibers it stimulates

46. What is the neurotransmitter involved in muscle contraction?

47. Acetylcholine

48. What type of skeletal muscle fibers are found in the white meat of chicken?

49. Fast glycolytic (fast twitch)

50. What are the 3 layers of fibrous connective tissue found in muscle and where are they found?

51. Fascia Epimysium-surrounding muscle Perimysium-surrounding fasicle
Endomysium-surrounding muscle fiber