Human Body in Health and Illness 6th Edition Herlihy Test Bank
Chapter 17: Function of the Heart
Herlihy: The Human Body in Health and Illness, 6th Edition .
MULTIPLE CHOICE
1. Systole and diastole describe the function of the
a. pericardium.
b. SA node.
c. myocardium.
d. mediastinum.
ANS: C
2. During atrial systole, the
a. AV valves are closed.
b. ventricles are relaxed.
c. ventricles are in systole.
d. semilunar valves are open.
ANS: B
3. What happens during ventricular diastole?
a. The ventricles are filling with blood.
b. All semilunar valves are open.
c. Both AV valves are closed.
d. Blood is pumped to the lungs and systemic circulation.
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ANS: A
4. Which of the following is the most likely consequence of a very rapid heart rate?
a. Decreased ventricular filling (with blood)
b. Failure of the AV valves to open
c. Failure of the SA node to fire
d. Failure of the cardiac impulse to enter the His-Purkinje system
ANS: A
5. Which of the following does not happen to a ventricle?
a. Activation of the beta1-adrenergic receptors
b. Discharge of sympathetic nerves
c. Discharge of the vagal nerve
d. Binding of norepinephrine to its receptor
ANS: C
6. Which of the following is most likely to relieve an anxiety-induced tachycardia?
a. Vagolytic drug
b. Beta1-adrenergic agonist
c. Sympathomimetic
d. Beta1-adrenergic blocker
ANS: D
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, Human Body in Health and Illness 6th Edition Herlihy Test Bank
7. Which of the following is responsible for the Starling effect?
a. Sympathetic nerve firing
b. Vagal discharge
c. Activation of the beta1-adrenergic receptors
d. End-diastolic volume (EDV) or preload
ANS: D
8. Which of the following is most likely to increase stroke volume?
a. A (+) inotropic drug
b. A vagolytic drug
c. A (–) chronotropic drug
d. A beta1-adrenergic blocker
ANS: A
9. Which of the following is most likely to increase ejection fraction?
a. Activation of beta1-adrenergic receptors
b. Vagal discharge
c. Blockade of beta1-adrenergic receptors
d. Activation of the muscarinic receptors
ANS: A
10. Which of the following is the same as end-diastolic volume?
a. Stroke volume
b. Cardiac output
c. Preload
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d. Cardiac reserve
ANS: C
11. What term refers to the amount of blood pumped by the ventricle in one beat?
a. Cardiac output
b. Blood volume
c. Hematocrit
d. Stroke volume
ANS: D
12. Which term refers to the amount of blood pumped by the heart in 1 minute?
a. Stroke volume
b. Cardiac output
c. Starling’s law of the heart
d. Inotropic effect
ANS: B
13. Sympathetic nerve stimulation of the myocardium
a. causes a (+) inotropic effect.
b. decreases cardiac output.
c. decreases heart rate.
NURSINGTB.COM
Chapter 17: Function of the Heart
Herlihy: The Human Body in Health and Illness, 6th Edition .
MULTIPLE CHOICE
1. Systole and diastole describe the function of the
a. pericardium.
b. SA node.
c. myocardium.
d. mediastinum.
ANS: C
2. During atrial systole, the
a. AV valves are closed.
b. ventricles are relaxed.
c. ventricles are in systole.
d. semilunar valves are open.
ANS: B
3. What happens during ventricular diastole?
a. The ventricles are filling with blood.
b. All semilunar valves are open.
c. Both AV valves are closed.
d. Blood is pumped to the lungs and systemic circulation.
NURSINGTB.COM
ANS: A
4. Which of the following is the most likely consequence of a very rapid heart rate?
a. Decreased ventricular filling (with blood)
b. Failure of the AV valves to open
c. Failure of the SA node to fire
d. Failure of the cardiac impulse to enter the His-Purkinje system
ANS: A
5. Which of the following does not happen to a ventricle?
a. Activation of the beta1-adrenergic receptors
b. Discharge of sympathetic nerves
c. Discharge of the vagal nerve
d. Binding of norepinephrine to its receptor
ANS: C
6. Which of the following is most likely to relieve an anxiety-induced tachycardia?
a. Vagolytic drug
b. Beta1-adrenergic agonist
c. Sympathomimetic
d. Beta1-adrenergic blocker
ANS: D
NURSINGTB.COM
, Human Body in Health and Illness 6th Edition Herlihy Test Bank
7. Which of the following is responsible for the Starling effect?
a. Sympathetic nerve firing
b. Vagal discharge
c. Activation of the beta1-adrenergic receptors
d. End-diastolic volume (EDV) or preload
ANS: D
8. Which of the following is most likely to increase stroke volume?
a. A (+) inotropic drug
b. A vagolytic drug
c. A (–) chronotropic drug
d. A beta1-adrenergic blocker
ANS: A
9. Which of the following is most likely to increase ejection fraction?
a. Activation of beta1-adrenergic receptors
b. Vagal discharge
c. Blockade of beta1-adrenergic receptors
d. Activation of the muscarinic receptors
ANS: A
10. Which of the following is the same as end-diastolic volume?
a. Stroke volume
b. Cardiac output
c. Preload
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d. Cardiac reserve
ANS: C
11. What term refers to the amount of blood pumped by the ventricle in one beat?
a. Cardiac output
b. Blood volume
c. Hematocrit
d. Stroke volume
ANS: D
12. Which term refers to the amount of blood pumped by the heart in 1 minute?
a. Stroke volume
b. Cardiac output
c. Starling’s law of the heart
d. Inotropic effect
ANS: B
13. Sympathetic nerve stimulation of the myocardium
a. causes a (+) inotropic effect.
b. decreases cardiac output.
c. decreases heart rate.
NURSINGTB.COM
