1. Prepared by Frank J. Torrano, American River College © 2013 Pearson Education, Inc. Chapter 7: The Muscular System Muscle Tissue & Sarcomere Organization Muscle Contraction Muscle Fiber Type & Energy Appendicular Musculature Axial Musculature $200 $100 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 FINAL ROUND

2. © 2013 Pearson Education, Inc. What structure divides the skeletal muscle into compartments and contains collagen fibers, elastic fibers, blood vessels, and nerves? a.fascicle b.endomysium c.perimysium d.epimysium Muscle Tissue & Sarcomere Organization: $100 Question ANSWER BACK TO GAME

3. © 2013 Pearson Education, Inc. What structure divides the skeletal muscle into compartments and contains collagen fibers, elastic fibers, blood vessels, and nerves? a.fascicle b.endomysium c.perimysium d.epimysium Muscle Tissue & Sarcomere Organization: $100 Answer BACK TO GAME

4. © 2013 Pearson Education, Inc. Muscle Tissue & Sarcomere Organization: $200 Question Structures filled with extracellular fluid, formed by the tunneling of the sarcolemma through the muscle fiber, are called a.transverse tubules (T tubules). b.sarcomeres. c.sarcoplasmic reticulum. d.myofibrils. ANSWER BACK TO GAME

5. © 2013 Pearson Education, Inc. Structures filled with extracellular fluid, formed by the tunneling of the sarcolemma through the muscle fiber, are called a.transverse tubules (T tubules). b.sarcomeres. c.sarcoplasmic reticulum. d.myofibrils. Muscle Tissue & Sarcomere Organization: $200 Answer BACK TO GAME

6. © 2013 Pearson Education, Inc. Which of the following accurately lists the levels of organization within a muscle from largest to smallest? a.muscle fiber, myofilament, myofibril b.myofilament, myofibril, muscle fiber c.muscle fiber, myofibril, myofilament d.Z line, A band, I band, M line Muscle Tissue & Sarcomere Organization: $300 Question ANSWER BACK TO GAME

7. © 2013 Pearson Education, Inc. Which of the following accurately lists the levels of organization within a muscle from largest to smallest? a.muscle fiber, myofilament, myofibril b.myofilament, myofibril, muscle fiber c.muscle fiber, myofibril, myofilament d.Z line, A band, I band, M line Muscle Tissue & Sarcomere Organization: $300 Answer BACK TO GAME

8. © 2013 Pearson Education, Inc. Which of the following parts of a sarcomere contain the protein actin only? a.I band b.A band c.H band d.All of the answers are correct. Muscle Tissue & Sarcomere Organization: $400 Question ANSWER BACK TO GAME

9. © 2013 Pearson Education, Inc. Which of the following parts of a sarcomere contain the protein actin only? a.I band b.A band c.H band d.All of the answers are correct. Muscle Tissue & Sarcomere Organization: $400 Answer BACK TO GAME

10. © 2013 Pearson Education, Inc. Which of the following statements regarding thick and thin filaments is true? a.The actin molecules are oriented away from the center of the sarcomere, with the heads projecting outward. b.The myosin molecules are oriented toward the center of the sarcomere, with the heads projecting outward. c.The actin molecules are oriented toward the center of the sarcomere, with the heads projecting inward. d.The myosin molecules are oriented toward the center of the sarcomere, with the heads projecting inward. Muscle Tissue & Sarcomere Organization: $500 Question ANSWER BACK TO GAME

11. © 2013 Pearson Education, Inc. Which of the following statements regarding thick and thin filaments is true? a.The actin molecules are oriented away from the center of the sarcomere, with the heads projecting outward. b.The myosin molecules are oriented toward the center of the sarcomere, with the heads projecting outward. c.The actin molecules are oriented toward the center of the sarcomere, with the heads projecting inward. d.The myosin molecules are oriented toward the center of the sarcomere, with the heads projecting inward. Muscle Tissue & Sarcomere Organization: $500 Answer BACK TO GAME

12. © 2013 Pearson Education, Inc. Both the synaptic cleft and the motor end plate contain which of the following enzymes? a.acetylcholine b.acetylcholinesterase c.nicotinamide reductase d.serotonin decarboxylase Muscle Contraction: $100 Question ANSWER BACK TO GAME

13. © 2013 Pearson Education, Inc. Both the synaptic cleft and the motor end plate contain which of the following enzymes? a.acetylcholine b.acetylcholinesterase c.nicotinamide reductase d.serotonin decarboxylase Muscle Contraction: $100 Answer BACK TO GAME

14. © 2013 Pearson Education, Inc. Which of the following statements regarding an action potential at the sarcolemma of a skeletal muscle cell is true? a.The passage of an action potential along the T tubules triggers a sudden, massive release of calcium ions by the terminal cisternae. b.Calcium spreads over the entire sarcolemma surface to initiate the action potential. c.The sudden, massive release of calcium ions triggers a sudden, massive release of calcium ions by the terminal cisternae. d.Sarcolemma depolarization removes calcium ions from the cytoplasm. Muscle Contraction: $200 Question ANSWER BACK TO GAME

15. © 2013 Pearson Education, Inc. Which of the following statements regarding an action potential at the sarcolemma of a skeletal muscle cell is true? a.The passage of an action potential along the T tubules triggers a sudden, massive release of calcium ions by the terminal cisternae. b.Calcium spreads over the entire sarcolemma surface to initiate the action potential. c.The sudden, massive release of calcium ions triggers a sudden, massive release of calcium ions by the terminal cisternae. d.Sarcolemma depolarization removes calcium ions from the cytoplasm. Muscle Contraction: $200 Answer BACK TO GAME

16. © 2013 Pearson Education, Inc. What is the biochemical explanation for rigor mortis? a.The sarcoplasmic reticulum is unable to remove calcium ions from the sarcoplasm. b.Skeletal muscle fibers have too much ATP stored, resulting in sustained muscle contractions. c.Cross-bridges remain detached from the active sites on actin. d.None of the answers is correct. Muscle Contraction: $300 Question ANSWER BACK TO GAME

17. © 2013 Pearson Education, Inc. What is the biochemical explanation for rigor mortis? a.The sarcoplasmic reticulum is unable to remove calcium ions from the sarcoplasm. b.Skeletal muscle fibers have too much ATP stored, resulting in sustained muscle contractions. c.Cross-bridges remain detached from the active sites on actin. d.None of the answers is correct. Muscle Contraction: $300 Answer BACK TO GAME

18. © 2013 Pearson Education, Inc. Which of the following statements regarding skeletal muscle contraction is false? a.Calcium ions bind to troponin, resulting in a conformational change in tropomyosin. b.Cross-bridge binding, pivoting, and detachment are powered by the breakdown of ATP. c.Acetylcholinesterase released by the synaptic terminal binds to receptors on the sarcolemma. d.None of the statements is false. Muscle Contraction: $400 Question ANSWER BACK TO GAME

19. © 2013 Pearson Education, Inc. Which of the following statements regarding skeletal muscle contraction is false? a.Calcium ions bind to troponin, resulting in a conformational change in tropomyosin. b.Cross-bridge binding, pivoting, and detachment are powered by the breakdown of ATP. c.Acetylcholinesterase released by the synaptic terminal binds to receptors on the sarcolemma. d.None of the statements is false. Muscle Contraction: $400 Answer BACK TO GAME

20. © 2013 Pearson Education, Inc. Which is the correct sequence of steps during the contraction cycle? 1. The attached myosin head pivots toward the center of the sarcomere, and ADP and a phosphate group are released. 2. The active site is exposed following the binding of calcium ions to troponin. 3. The myosin head is reactivated as it splits the ATP and captures released energy. 4. The myosin cross-bridge forms and attaches to the exposed active sites on actin filaments. 5. Cross-bridges detach when the myosin head binds another ATP molecule. a.3-4-2-1-5 b.2-4-1-5-3 c.2-1-4-5-3 d.2-4-1-3-5 Muscle Contraction: $500 Question ANSWER BACK TO GAME

21. © 2013 Pearson Education, Inc. Which is the correct sequence of steps during the contraction cycle? 1. The attached myosin head pivots toward the center of the sarcomere, and ADP and a phosphate group are released. 2. The active site is exposed following the binding of calcium ions to troponin. 3. The myosin head is reactivated as it splits the ATP and captures released energy. 4. The myosin cross-bridge forms and attaches to the exposed active sites on actin filaments. 5. Cross-bridges detach when the myosin head binds another ATP molecule. a.3-4-2-1-5 b.2-4-1-5-3 c.2-1-4-5-3 d.2-4-1-3-5 Muscle Contraction: $500 Answer BACK TO GAME

22. © 2013 Pearson Education, Inc. Which of the following statements regarding fast skeletal muscle fibers is true? a.They are small in diameter, have large glycogen reserves, and have relatively few mitochondria. b.They are large in diameter, with relatively few mitochondria. c.They have a greater oxygen supply than slow fibers. d.All of the statements are true. Muscle Fiber Type & Energy: $100 Question ANSWER BACK TO GAME

23. © 2013 Pearson Education, Inc. Which of the following statements regarding fast skeletal muscle fibers is true? a.They are small in diameter, have large glycogen reserves, and have relatively few mitochondria. b.They are large in diameter, with relatively few mitochondria. c.They have a greater oxygen supply than slow fibers. d.All of the statements are true. Muscle Fiber Type & Energy: $100 Answer BACK TO GAME

24. © 2013 Pearson Education, Inc. Which of the following areas of the human body are dominated by slow fibers? a.eye and hand muscles b.back and calf muscles c.hand and foot muscles d.pelvic and leg muscles Muscle Fiber Type & Energy: $200 Question ANSWER BACK TO GAME

25. © 2013 Pearson Education, Inc. Which of the following areas of the human body are dominated by slow fibers? a.eye and hand muscles b.back and calf muscles c.hand and foot muscles d.pelvic and leg muscles Muscle Fiber Type & Energy: $200 Answer BACK TO GAME

26. © 2013 Pearson Education, Inc. Which of the following statements regarding smooth muscle tissue is true? a.It utilizes pacemaker cells as a control mechanism. b.Tetanus cannot occur. c.The actin and myosin filaments are scattered throughout the sarcoplasm. d.It utilizes pacemaker cells as a control mechanism, and the actin and myosin filaments are scattered throughout the sarcoplasm. Muscle Fiber Type & Energy: $300 Question ANSWER BACK TO GAME

27. © 2013 Pearson Education, Inc. Which of the following statements regarding smooth muscle tissue is true? a.It utilizes pacemaker cells as a control mechanism. b.Tetanus cannot occur. c.The actin and myosin filaments are scattered throughout the sarcoplasm. d.It utilizes pacemaker cells as a control mechanism, and the actin and myosin filaments are scattered throughout the sarcoplasm. Muscle Fiber Type & Energy: $300 Answer BACK TO GAME

28. © 2013 Pearson Education, Inc. Which of the following statements correctly describes isotonic contraction? a.Tension produced never exceeds the resistance. b.Tension remains at a constant level until relaxation occurs. c.An example is the reflexive contractions that keep the body upright while standing or sitting. d.All of the statements are correct. Muscle Fiber Type & Energy: $400 Question ANSWER BACK TO GAME

29. © 2013 Pearson Education, Inc. Which of the following statements correctly describes isotonic contraction? a.Tension produced never exceeds the resistance. b.Tension remains at a constant level until relaxation occurs. c.An example is the reflexive contractions that keep the body upright while standing or sitting. d.All of the statements are correct. Muscle Fiber Type & Energy: $400 Answer BACK TO GAME

30. © 2013 Pearson Education, Inc. Which of the following statements about how skeletal muscles use and store energy is true? a.At rest, muscles use glycogen stores for energy. b.During light activity, muscles generate energy through the aerobic breakdown of carbohydrates, lipids, or amino acids. c.At peak levels of activity, muscles generate energy by aerobic breakdown of carbohydrates, lipids, or amino acids. d.Glycolysis produces ATP more efficiently than aerobic respiration. Muscle Fiber Type & Energy: $500 Question ANSWER BACK TO GAME

31. © 2013 Pearson Education, Inc. Which of the following statements about how skeletal muscles use and store energy is true? a.At rest, muscles use glycogen stores for energy. b.During light activity, muscles generate energy through the aerobic breakdown of carbohydrates, lipids, or amino acids. c.At peak levels of activity, muscles generate energy by aerobic breakdown of carbohydrates, lipids, or amino acids. d.Glycolysis produces ATP more efficiently than aerobic respiration. Muscle Fiber Type & Energy: $500 Answer BACK TO GAME

32. © 2013 Pearson Education, Inc. Which muscle inserts on the mandible and the skin of the cheek? a.mylohyoid b.stylohyoid c.sternohyoid d.platysma Axial Musculature: $100 Question ANSWER BACK TO GAME

33. © 2013 Pearson Education, Inc. Which muscle inserts on the mandible and the skin of the cheek? a.mylohyoid b.stylohyoid c.sternohyoid d.platysma Axial Musculature: $100 Answer BACK TO GAME

34. © 2013 Pearson Education, Inc. Which muscle has as its origin the spinous processes of the lower cervical and upper thoracic vertebrae? a.iliocostalis b.semispinalis capitis c.quadratus lumborum d.external intercostals Axial Musculature: $200 Question ANSWER BACK TO GAME

35. © 2013 Pearson Education, Inc. Which muscle has as its origin the spinous processes of the lower cervical and upper thoracic vertebrae? a.iliocostalis b.semispinalis capitis c.quadratus lumborum d.external intercostals Axial Musculature: $200 Answer BACK TO GAME

36. © 2013 Pearson Education, Inc. Which muscle functions to stabilize the central tendon of the perineum? a.ischiocavernosus b.transverse perineus c.rectus abdominis d.external anal sphincter Axial Musculature: $300 Question ANSWER BACK TO GAME

37. © 2013 Pearson Education, Inc. Which muscle functions to stabilize the central tendon of the perineum? a.ischiocavernosus b.transverse perineus c.rectus abdominis d.external anal sphincter Axial Musculature: $300 Answer BACK TO GAME

38. © 2013 Pearson Education, Inc. Which muscle(s) function(s) to elevate, protract, and/or move the mandible to either side? a.masseter b.temporalis c.pterygoids d.masseter and temporalis Axial Musculature: $400 Question ANSWER BACK TO GAME

39. © 2013 Pearson Education, Inc. Which muscle(s) function(s) to elevate, protract, and/or move the mandible to either side? a.masseter b.temporalis c.pterygoids d.masseter and temporalis Axial Musculature: $400 Answer BACK TO GAME

40. © 2013 Pearson Education, Inc. Which muscle inserts on the last rib and the transverse processes of the lumbar vertebrae? a.quadratus lumborum b.iliocostalis c.spinalis d.longissimus Axial Musculature: $500 Question ANSWER BACK TO GAME

41. © 2013 Pearson Education, Inc. Which muscle inserts on the last rib and the transverse processes of the lumbar vertebrae? a.quadratus lumborum b.iliocostalis c.spinalis d.longissimus Axial Musculature: $500 Answer BACK TO GAME

42. © 2013 Pearson Education, Inc. Which muscle is the major abductor of the arm? a.infraspinatus b.supraspinatus c.deltoid d.pectoralis major Appendicular Musculature: $100 Question ANSWER BACK TO GAME

43. © 2013 Pearson Education, Inc. Which muscle is the major abductor of the arm? a.infraspinatus b.supraspinatus c.deltoid d.pectoralis major Appendicular Musculature: $100 Answer BACK TO GAME

44. © 2013 Pearson Education, Inc. Which muscle originates on the anterior and superior margins of ribs 1–9? a.serratus anterior b.subclavius c.pectoralis minor d.rhomboids Appendicular Musculature: $200 Question ANSWER BACK TO GAME

45. © 2013 Pearson Education, Inc. Which muscle originates on the anterior and superior margins of ribs 1–9? a.serratus anterior b.subclavius c.pectoralis minor d.rhomboids Appendicular Musculature: $200 Answer BACK TO GAME

46. © 2013 Pearson Education, Inc. Which muscle does not insert on the greater tubercle of the humerus? a.teres minor b.subscapularis c.pectoralis major d.supraspinatus Appendicular Musculature: $300 Question ANSWER BACK TO GAME

47. © 2013 Pearson Education, Inc. Which muscle does not insert on the greater tubercle of the humerus? a.teres minor b.subscapularis c.pectoralis major d.supraspinatus Appendicular Musculature: $300 Answer BACK TO GAME

48. © 2013 Pearson Education, Inc. Which muscle inserts on the bases of the second and third metacarpal bones? a.flexor carpi ulnaris b.palmaris longus c.flexor carpi radialis d.extensor carpi ulnaris Appendicular Musculature: $400 Question ANSWER BACK TO GAME

49. © 2013 Pearson Education, Inc. Which muscle inserts on the bases of the second and third metacarpal bones? a.flexor carpi ulnaris b.palmaris longus c.flexor carpi radialis d.extensor carpi ulnaris Appendicular Musculature: $400 Answer BACK TO GAME

50. © 2013 Pearson Education, Inc. Which muscle acts to flex the knee, as well as perform adduction and medial rotation at the hip? a.adductor brevis b.pectineus c.tensor fasciae latae d.gracilis Appendicular Musculature: $500 Question ANSWER BACK TO GAME

51. © 2013 Pearson Education, Inc. Which muscle acts to flex the knee, as well as perform adduction and medial rotation at the hip? a.adductor brevis b.pectineus c.tensor fasciae latae d.gracilis Appendicular Musculature: $500 Answer BACK TO GAME

52. © 2013 Pearson Education, Inc. Curare is best known as the South American "poison arrow" toxin used for hunting. A synthetic form of curare is used routinely in emergency care to facilitate intubation. Curare specifically blocks acetylcholine (ACh) receptors. What is the result of administering curare to a skeletal muscle group? a.contraction b.relaxation c.repeated twitching d.depolarization FINAL ROUND Question ANSWER BACK TO GAME

53. © 2013 Pearson Education, Inc. Curare is best known as the South American "poison arrow" toxin used for hunting. A synthetic form of curare is used routinely in emergency care to facilitate intubation. Curare specifically blocks acetylcholine (ACh) receptors. What is the result of administering curare to a skeletal muscle group? a.contraction b.relaxation c.repeated twitching d.depolarization FINAL ROUND Answer BACK TO GAME