Chapter 13 Review

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Chapter 13Review
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1. The second heart sound (dup) is created by
the a. closing of the A-V valves b. opening of
the A-V valves c. closing of the semilunar
valves d. opening of the semilunar valves
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2. The layer of the blood vessel wall that
determines the diameter of the lumen is the a.
tunica externa b. tunica interna c. tunica
media d. none of the above
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3. Resting pulse rate in an average adult is a.
40-50 beats per minute b. 50-60 BPM c. 70-80
BPM d. 90-100 BPM
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4. Valves are present in a. arteries b.
arterioles c. veins d. capillaries
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5. On an ECG, depolarization of the ventricles is
represented by the a. QRS complex b. T wave c. P
wave d. S-T segment
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6. On an ECG, depolarization of the atria is
represented by a. QRS complex b. T wave c. P
wave d. S-T segment
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7. On an ECG, repolarization of the ventricles is
represented by the a. QRS complex b. T wave c. P
wave d. S-T segment
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ECG
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8. The function of baroreceptors is to monitor
changes in a. heart rate b. stroke volume c.
blood pressure d. blood viscosity
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9. Baroreceptors are located in the a. wall of
the right ventricle b. medulla oblongata c. walls
of the capillaries d. wall of the aorta and
carotid arteries
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10. Baroreceptors send nerve impulses to the a.
medulla oblongata only b. chemoreceptors only c.
S-A node only d. Both the medulla oblongata and
the S-A node
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11. The vasomotor center directly controls a.
heart rate by stimulating the S-A node b. stroke
volume by regulating total blood volume c.
peripheral resistance by changing the diameter of
blood vessels d. peripheral resistance by
altering blood viscosity
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• 12. The correct sequence of parts that function
  to carry cardiac impulses is
• S-A node, A-V node, A-V bundle, Purkinje fibers
• b. S-A node, Purkinje fibers, A-V node, A-V
  bundle
• c. A-V node, S-A node, Purkinje fibers, A-V
  bundle
• d. A-V node, A-V bundle, Purkinje fibers, S-A
  node

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13. The decrease in the speed of conduction from
the A-V node through the A-V bundle results
in a. failure of the ventricles to contract b.
adequate time for the ventricles to fill c.
delayed opening of the A-V valves d. a decrease
in the rate of blood flow from the atria to the
ventricles
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14. Blood flows from the pulmonary veins into
the a. pulmonary arteries b. right atrium c.
lungs d. left atrium
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15. The bicuspid valve is located between the a.
right ventricle and the aorta b. right ventricle
and the pulmonary trunk c. left atrium and the
left ventricle d. right and left atria
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16. The myocardium is made of a. smooth
muscle b. cardiac muscle c. skeletal muscle d.
endothelium
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17. The atrioventricular valves close when
the a. S-A node fires b. Atria contract c.
Ventricles relax d. Ventricles contract
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18. During the normal cardiac cycle, the atria
contract when they are directly stimulated by
the a. S-A node b. A-V node c. Conduction
myofibers d. Baroreceptors
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19. From the coronary sinus, blood normally flows
next into the a. aorta b. pulmonary trunk c.
right atrium d. left atrium
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20. The tunica interna of a blood vessel is made
of a. smooth muscle b. cardiac muscle c.
skeletal muscle d. endothelium
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21. The typical heart sounds are made by the a.
vibration of the chordae tendineae b. flow of
blood into the coronary arteries c. opening of
the valves d. closing of the valves
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22. There is a semilunar valve between the a.
right ventricle and the aorta b. right ventricle
and the pulmonary trunk c. left atrium and the
left ventricle d. right atrium and right
ventricle
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23. The initiation of the heart beat is the
responsibility of the a. cardiovascular
center b. baroreceptors c. vagus nerve d. S-A
node
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24. The function of the chordae tendineae is
to a. pull the walls of the ventricles inward
during contraction b. open the semilunar
valves c. open the A-V valves d. close the A-V
valves during ventricular contraction
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25. Blood flows from the superior vena cava into
the a. right atrium b. inferior vena cava c.
left atrium d. aorta
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5.
6.
7.
3.
1.
4.
8.
2.
26. Which numbers indicate the ventricles?
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5.
6.
7.
3.
1.
4.
8.
2.
27. Which numbers indicate the atria?
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5.
6.
7.
3.
1.
4.
8.
2.
28. Which structure carries deoxygenated blood
from the lower part of the body to the heart?
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5.
6.
7.
3.
1.
4.
8.
2.
29. Which vessels bring freshly oxygenated blood
back to the heart from the lungs?
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5.
6.
7.
3.
1.
4.
8.
2.
30. Which chamber pumps blood to the lungs?
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5.
6.
7.
3.
1.
4.
8.
2.
31. The bicuspid/mitral valve is found between
these two structures?
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5.
6.
7.
3.
1.
4.
8.
2.
32. Which vessel carries blood out to the body?
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5.
6.
7.
3.
1.
4.
8.
2.
33. The structure labeled 6 carries blood to the
__?__.
Lungs
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5.
6.
7.
3.
1.
4.
8.
2.
34. The pulmonary semilunar valve is between
which two structures?
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35. The initiation of the heart beat is the
responsibility of the a. cardiovascular
center b. baroreceptors c. vagus nerve d. S-A
node
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33. Lungs 34. 2 6 35. D
25. A 26. 2 4 27. 1 3 28. 8 29. 7 30. 2 31. 3
4 32. 5

• C
• C
• C
• C
• A
• C
• B
• C

9. D 10. A 11. C 12. A 13. B 14. D 15. C 16. B
17. D 18. A 19. C 20. D 21. D 22. B 23. D 24. D