Jefferson Township Public Schools



Human Anatomy & Physiology - The Muscular System Quiz

PLEASE DO NOT WRITE ON THIS QUIZ SHEET

Matching: Match the terms below with the statements that follow.

A) Cardiac C) smooth E) Cardiac & Skeletal

B) Skeletal D) Cardiac & Smooth

1. Muscle tissue that is involuntary.

2. Located in the walls of the digestive tract.

3. Attached to bones.

4. Found in the walls of the heart.

5. Muscle tissue that is voluntary.

6. Branching chains of cells, uninucleate; striations; intercalated discs.

7. Single cells, spindle-shaped, uninucleate, no striations.

8. Single cells, very long, cylindrical, multinucleated, very obvious striations.

9. Muscle contraction would be slow and sustained.

10. Muscle contraction would be at a fairly steady rate.

11. Muscle contraction can be rapid and with great force, but tires easily and must rest

after short periods of activity.

12. 13.

14.

Multiple Guess: Choose the best answer; fill in the corresponding letter on the answer sheet.

15. Skeletal muscle cells contain many

A) nuclei B) mitochondria C) A & B are correct D) neither A or B are correct

16. Which of the following is NOT a function of the muscular system:

A) hematopoiesis C) generating heat E) stabilizing joints

B) producing movement D) maintaining posture

17. A fibrous, flattened, sheet-like tendon is known as:

A) fascia B) aponeurosis C) a tendon sheath D) a broad ligament

18. The connective tissue that surrounds individual muscle fibers is:

A) perimysium B) epimysium C) endomysium D) elastin

19. The dark bands in skeletal muscle fibers that contribute to its striated appearance are

known as:

A) I bands B) Z bands C) H bands D) A bands

20. The sarcomere, the basic unit of skeletal muscle extends from:

A) A band to A band C) H band to H band

B) M line to M line D) Z line to Z line

21. The segment of a muscle fiber that contains actin and myosin is the:

A) A band B) Z lines C) H zone D) sarcomere

22. An entire skeletal muscle is covered by a course sheath called:

A) perimysium B) epimysium C) endomysium D) aponeurosis

23. The plasma membrane of a muscle cell is termed a:

A) sarcoplasmic reticulum C) intercalated disc E) sarcolemma

B) sarcomere D) sarcoplasm

24. Myofibrils are composed mostly of:

A) tropomyosin C) myotomes E) troponin

B) actin and myosin D) ADP and ATP

25. An elaborate network of membranes in skeletal muscle cells that function in calcium

storage is the :

A) sarcoplasmic reticulum C) sarcolemma E) intermediate filament network

B) myofibrillar network D) mitochondria

26. Which of the following are composed of myosin:

A) light bands C) all myofilaments E) Z lines

B) thick filaments D) thin filaments

27. The correct order of arrangement of skeletal muscle cells, from largest to smallest, is:

A) fiber, myofibril, myofilament C) myofilament, myofibril, fiber

B) myofibril, myofilament, fiber D) fiber, myofilament, myofibril

28. When the cross bridge of the myosin molecule forms linkages with actin filaments, the

result is:

A) shortening of the muscle fiber C) membrane polarization

B) creation of a high energy bond D) release of acetylcholine

29. The sliding filament theory of muscle contraction says:

A) Actin filaments become shorter when they combine with myosin.

B) Myosin rotates and has actin wrap around it.

C) Friction is reduced between thin and thick filaments causing thick to move, inside

the thin.

D) Myosin filaments slide between the actin, making the muscle shorter.

E) A neurotransmitter alters the arrangement of collagen fibers in the endostium,

causing it to shrink.

30. When a nerve impulse reaches the end of a motor neuron,

A) the number of synaptic vesicles increase

B) muscle fibers stretch

C) calcium ions move out of the cytoplasm of the neuron

D) acetylcholine is released

31. In order for a muscle contraction to occur:

A) lactic acid must be present C) iron ions must be available

B) lysozyme must be present D) a nerve impulse must stimulate the muscle fiber

32. Muscle fibers undergoing sustained, strenuous exercise depend upon:

A) aerobic respiration C) anaerobic respiration

B) increased metabolism of glucose D) increased blood supply

33. The energy source that is directly responsible for muscle fiber contraction is:

A) lactic acid B) glycogen C) glucose D) ADP E) ATP

34. Oxygen debt secondary to strenuous exercise is due to:

A) insufficient oxygen to promote conversion of lactic acid to pyruvic acid

B) lack of available oxygen to convert ADP to ATP

C) both A & B

D) neither A or B

35. What is the specific neurotransmitter that stimulates skeletal muscle?

A) dopamine B) epinephrine C) endomysium D) acetylcholine (Ach)

Use the back of the Answer Sheet for questions 51- 64.

Match the terms with the statements, darken the corresponding number on the answer sheet.

51. The distance between two Z lines 1. Z discs

52. Otherwise known as thick filaments 2. H zone

53. Contains only the actin filaments 3. sarcomere

54. Both actin and myosin are found in this band 4. actin filaments

55. The type of filament that is studded with myosin heads 5. I band

56. Tiny contractile unit that shortens during muscle contraction 6. myosin filament

57. Actin filaments are anchored to these disc like membranes 7. A band

58. Lighter central portion of the A band

Match the terms below with the statements that follow; darken the corresponding number on the answer sheet.

8. acetylcholine 10. aerobic respiration 12. calcium ions 14. potassium ions

9. enzymes 11. sodium ions 13. anaerobic 15. creatine phosphate

respiration

59. Serves as the actual “go” signal for muscle contraction

60. Neurotransmitter substance released at motor end plates by the motor neuron

61. Normally stored in the sarcoplasmic reticulum

62. A metabolic pathway that produces water, carbon dioxide, and ATP, and provides for

a large amount of ATP per glucose because oxygen is used

63. A reserve, high energy compound used to convert ADP to ATP by the transfer of a

high-energy phosphate group

64. Destroys acetylcholine

Place the following events in their proper sequence: Place the number on the line on the answer sheet.

66. The muscle cell contracts.

67. Action potential propagates along the sarcolemma and down the T Tubules.

68. Acetylcholine binds to receptor sites on the motor end plate.

69. Motor end plate becomes depolarized.

70. Action potential is initiated on the sarcolemma.

71. Calcium ions enter the axon terminal.

72. Acetylcholine is released into the synaptic cleft.

73. Synaptic vesicles fuse to membrane of axon terminal.

74. Calcium ions are released from the terminal cisternae.

75. Action potential arrives at the axon terminal.

Name _____________________________________________ #__________ Period _________

Human Anatomy & Physiology Quiz – The Muscular System (Ch. 6)

Use the diagrams to indentify the structures, place the terms on the lines provided.

Slide 1 - Connective Tissue Wrappings of Skeletal Muscle

1._________________________________ 5._________________________________

2._________________________________ 6._________________________________

3._________________________________ 7._________________________________

4._________________________________ 8._________________________________

Slide 2 - Microscopic Anatomy of Skeletal Muscle

1._________________________________ 4._________________________________

2._________________________________ 5._________________________________

3._________________________________

Slide 3 - Myofibril or fibril

1._________________________________ 6._________________________________

2._________________________________ 7._________________________________

3._________________________________ 8._________________________________

4._________________________________ 9._________________________________

5._________________________________ 10.________________________________

Slide 4 - Sarcomere

1._________________________________ 4._________________________________

2._________________________________ 5._________________________________

3._________________________________

Slide 5 - Myofilament structure.

1._________________________________ 3._________________________________

2._________________________________

Slide 6 - Neuromuscular Junction

1._________________________________ 6._________________________________

2._________________________________ 7._________________________________

3._________________________________ 8._________________________________

4._________________________________ 9._________________________________

5._________________________________

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