Physio Final Pt. 4

Front 1

1-5

1. first

2. second

3. third

4. fourth

5. fifth

a. platelet and tissue factors (chemical messengers are secreted

b. prothrombin is converted to thrombin

c. clotting factor x(#10) is activated

d. fibrinogen is converted to fibrin

e. tissues are damaged

Back 1

1. e

2. a

3. c

4. b

5. d

Front 2

6-10

6. Hb-H + O2 -> Hb-O2 +H+

7. Hb-H + O2 <- Hb-O2 +H+

8. Hb-H + CO2 -> Hb-CO2 + H+

9. CO2 + H2O -> H2CO3 -> H+ + HCO3-

10. CO2 + H2O <- H2CO3 <- H+ + HCO3-

a. occurs in pulmonary capillaries

b. occurs in systemic capillaries

Back 2

6. a

7. b

8. b

9. b

10. a

Front 3

11-15. place the following in the order they occur during quiet inhalation

11. first

12. second

13. third

14. fourth

15. fifth

a. air is drawn into lungs

b. diaphragm is pulled down

c. diaphragm contracts

d. lungs expand and the elastic connective tissue of lungs stretches

e. parietal pleura of the diaphragm pulls on the visceral pleura of the lungs

Back 3

11. c

12. b

13. e

14. d

15. a

Front 4

16-20

16. IRV

17. TV

18. VC

19. RV

20. TLC

a. the volume of air remaining in the lungs following a maximum expiration

b. the maximum volume of air that can be inspired following a quiet inspiration

c. the volume of air exchanged during an unforced breath

d. TV + IRV + ERV +RV

e. TV + IRV + ERV

Back 4

16. b

17. c

18. e

19. a

20. d

Front 5

21. the elasticity of the lungs facilities expansion during inspiration

a. true

b. false

Back 5

b. false

Front 6

22. activation of the sympathetic nervous system causes bronchodilation

a. true

b. false

Back 6

a. true

Front 7

23. what is the primary determinant of airway resistance?

a. presence of mucus

b. rate of air exchange

c. compliance

d. airway radius

Back 7

d. airway radius

Front 8

24. which pressure is constant during the respiratory cycle?

a. transpulmonary pressure

b. intrapulmonary pressure

c. atmospheric pressure

d. ventricular pressure

Back 8

c. atmospheric pressure

Front 9

25. what is the volume of the respiratory pathway that is not able to exchange gases called?

a. inspiratory volume

b. expiratory dead space

c. functional residual volume

d. residual volume

e. dead space

Back 9

e. dead space

Front 10

26. the surface tension of the alveoli is reduced by surfactant produced by what type of cells?

a. goblet cell

b. type I alveolar cell

c. dust cell

d. ciliated cell

e. none of the above

Back 10

e. none of the above

Front 11

27. which of the following pressures is lower during inspiration than during expiration?

a. both intra-alveolar and intrapleural pressure

b. both transpulmonary and intrapulmonary pressure

c. intrapleural pressure only

d. transpulmonary pressure only

e. intra-alveolar pressure only

Back 11

27. a. both intra-alveolar and intrapleural pressure

Front 12

28. what does contraction of the diaphragm cause?

a. decrease in the volume of thoracic cavity and intrapulmonary pressure

b. increase in the volume of thoracic cavity and increase of intrapulmonary pressure

c. increase in the volume of thoracic cavity and decrease of intrapulmonary pressure

d. decrease in the volume of thoracic cavity and increase of intrapulmonary pressure

Back 12

c. increase in the volume of thoracic cavity and decrease of intrapulmonary pressure

Front 13

29. what is the enzyme that converts soluble fibrinogen to insoluble fibrin?

a. prothrombin

b. thrombin

c. thromboplastin

d. plasmin

Back 13

b. thrombin

Front 14

30-34

30. = SV xHR

31. blood flow out of left ventricle each minute

32. left ventricular volume at end of relaxation

33. left ventricular volume at end of contraction

34. blood flow out of left ventricle each contraction

a. end diastolic volume (EDV)

b. end systolic volume (ESV)

c. stroke volume (SV)

d. cardiac output (CO)

Back 14

30. d

31. d

32. a

33. b

34. c

Front 15

35-38

35. first

36. second

37. third

38. fourth

a. clot removal

b. vasoconstriction

c. formation of fibrin mesh/web

d. formation of platelet plug

Back 15

35. b

36. d

37. c

38. a

Front 16

39. respiratory alkalosis can occur during

a. shortage of CO2

b. excess of CO2

Back 16

a. shortage of CO2

Front 17

40-44 place the following in the order they occur in cardiac pacemaker cells

40. first

41. second

42. third

43. fourth

44. fifth

a. depolarization (+) opens K+ channels causing repolarization (-)

b. depolarization (+) by Ca++ opens Ca++ L-channels

c. depolarization (+) by Na+ opens Ca++ t-channels

d. repolarization (-) opens "f" type Na+ channels

e. K+ channels close

Back 17

40. d

41. c

42. b

43. a

44. e

Front 18

45. the majority of oxygen present within the blood is

a. bount to Hb within the plasma

b. bound to Hb in RBC

c. dissolved within the plasma

d. in the plasma as HCO3-

e. bound to plasma proteins

Back 18

b. bound to Hb in RBC

Front 19

46. hyperventilation will cause changes in pCO2 that are detected by the chemoreceptors which causes an

a. decrease in breathing rate only

b. decrease in depth of breathing

c. A & B

Back 19

c. A & B

Front 20

47. a respiratory acidosis is caused by increased CO2 within the bood

a. true

b. false

Back 20

a. true

Front 21

48. the inspiratory neurons of the ventral and dorsal respiratory groups stimulate motor neurons in the phrenic nerve, which stimulates contraction of the diaphragm

a. true

b. false

Back 21

a. true

Front 22

49. as blood flows through systemic capillaries, carbonic acid dissociates into bicarbonate ion and hydrogen ion within the RBC, the bicarbonate is moved out by the chloride shift while the hydrogen ion binds to hemoglobin

a. true

b. false

Back 22

a. false

Front 23

50. a person goes to the doctor and is told his BP is 90/60 and his pulse is 80. which of the following is false?

a. systolic pressure is 90 mmHg

b. pulse pressure is 80 mmHg

c. MAP is 70 mmHg

d. diastolic pressure is 60 mmHg

e. HR is 80

Back 23

b. pulse pressure is 80 mmHg

Front 24

51. what is the driving force for blood flow through the systemic circuit?

a. right atrial pressure

b. capillary hydrostatic pressure

c. central venous pressure

d. mean arterial pressure

Back 24

d. mean arterial pressure

Front 25

52. which of the following would decrease mean arterial pressure?

a. increase in heart rate

b. increase in venous return

c. increase in stroke volume

d. increase in TPR

e. increase in arteriole diameter

Back 25

e. increase in arteriole diameter

Front 26

53. which of the following would decrease central venous pressure?

a. activity of skeletal muscles

b. increased respiratory activity

c. increased sympathetic activity

d. standing up

e. increased blood volume

Back 26

d. standing up

Front 27

54. where is the cardiovascular control center?

a. hypothalamus

b. pons

c. medulla oblongata

d. adrenal medulla

e. none of the above

Back 27

c. medulla oblongata

Front 28

55-59

55. corresponds to time of atrial contraction

56. measures depolarization of atrial muscle

57. measure depolarization of ventricular contraction

58. corresponds to time of ventricular contraction

59. measures repolarization of ventricular muscle

a. PQ (PR) interval

b. QT interval

c. QRS wave

d. P wave

e. T wave

Back 28

55. a

56. d

57. c

58. b

59. e

Front 29

60-64

60. Prs/Fair

61. EDV-ESV

62. Pin-Pout/R

63. BV/MAP

64. (COxTPR) + CVP

a. flow=F

b. MAP

c. compliance = C

d. stroke volume=SV

e. resistance of airways = Raw

Back 29

60. e

61. d

62. a

63. c

64. b

Front 30

65-68 place the following in the order they occur during renin-angiotensin control of blood vessels

65. first

66. second

67. third

68. fourth

a. liver produces angiotensinogen and kidneys produce renin

b. angiotensin II acts on receptors to cause vasodilation and vasoconstriction

c. renin converts angiotensinogen into angiotensin I

d. ACE converts angiotensin I into angiotensin II

Back 30

65. a

66. c

67. d

68. b

Front 31

69. during recording of an EKG, a depolarization that travels toward a positive lead will cause and upward deflection

a. true

b. false

Back 31

a. true

Front 32

70-74. trace the cardiac conduction signals through the heart

70. first

71. second

72. third

73. fourth

74. fifth

a. AV node

b. SA node

c. atrial conduction fibers

d. AV bundle and branches

e. ventricular conduction fibers

Back 32

70. b

71. c

72 a

73. d

74. e

Front 33

75-78

75. ventricular pressure exceeds aortic pressure

76. AV valves are open, semilunar valves are closed

77. pressure differential leads to 70% of ventricular filling

78. AV valves are closed, semilunar valves are open

a. ventricular contraction

b. ventricular relaxation

Back 33

75. a

76. b

77. b

78. a

Front 34

79. erythoblastosis fetalis occurs when

a. the mother has blood type a. and the fetus has blood type O

b. the mother has Rh+ blood and the fetus has Rh+ blood

c. the mother has Rh- blood and the fetus has Rh+ blood

d. the mother has type AB blood and the fetus has type O blood

Back 34

c. the mother has Rh- blood and the fetus has Rh+ blood

Front 35

80. Andrew has type B blood. which type of antibodies are present in his plasma?

a. anti-A

b. anti-B

c. anti-A and anti-B

d. neither anti-A and anti-B

Back 35

a. anti-A