Pathophysiology Chapter 12- Test Bank
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1. Which of the following actions causes the atrioventric- A
ular (AV) valves to close?
A) Increased intraventricular pressure
B) Depolarization at the AV node
C) Ventricular relaxation and backflow of blood
D) Contraction of the atria
2. When stroke volume decreases, which of the following B
could maintain cardiac output?
A) Decreased peripheral resistance
B) Increased heart rate
C) Decreased venous return
D) General vasodilation
3. Which of the following describes the pericardial cavi- B
ty?
A) It contains sufficient fluid to provide a protective
cushion for the heart.
B) It is a potential space containing a very small
amount of serous fluid.
C) It is lined by the endocardium.
D) It is located between the double-walled pericardium
and the epicardium.
4. Which of the following factors greatly improves venous C
return to the heart during strenuous exercise?
A) Rapid emptying of the right side of the heart
B) Forceful action of the valves in the veins
C) Contraction and relaxation of skeletal muscle
D) Peristalsis in the large veins
5. D
, Pathophysiology Chapter 12- Test Bank
Study online at https://quizlet.com/_jo4rqk
The function of the baroreceptors is to:
A) stimulate the parasympathetic or sympathetic ner-
vous system at the sinoatrial (SA) node as needed.
B) adjust blood pressure by changing peripheral resis-
tance.
C) sense a change in blood oxygen and carbon dioxide
levels.
D) signal the cardiovascular control center of changes
in systemic blood pressure.
6. The normal delay in conduction through the AV node D
is essential for:
A) preventing an excessively rapid heart rate.
B) limiting the time for a myocardial contraction.
C) allowing the ventricles to contract before the atria.
D) completing ventricular filling.
7. Which of the following is a result of increased secretion A
of epinephrine?
A) Increased heart rate and force of contraction
B) Decreased stimulation of the SA node and ventri-
cles
C) Vasoconstriction in skeletal muscles and kidneys
D) Vasodilation of cutaneous blood vessels
8. Which of the following causes increased heart rate? D
A) Stimulation of the vagus nerve
B) Increased renin secretion
C) Administration of beta-blocking drugs
D) Stimulation of the sympathetic nervous system
9. The term preload refers to: A
A) volume of venous return.
, Pathophysiology Chapter 12- Test Bank
Study online at https://quizlet.com/_jo4rqk
B) peripheral resistance.
C) stroke volume.
D) cardiac output.
10. Cardiac output refers to: B
A) the amount of blood passing through either of the
atria.
B) the volume of blood ejected by a ventricle in one
minute.
C) the volume of blood ejected by each ventricle in a
single contraction.
D) the total number of heartbeats in one minute.
11. Vasodilation in the skin and viscera results directly C
from:
A) decreased blood pressure.
B) increased parasympathetic stimulation.
C) relaxation of smooth muscle in the arterioles.
D) increased stimulation of alpha-adrenergic recep-
tors.
12. Which of the following are predisposing factors to D
thrombus formation in the circulation?
1. Decreased viscosity of the blood
2. Damaged blood vessel walls
3. Immobility
4. Prosthetic valves
A) 1, 3
B) 2, 4
C) 1, 3, 4
D) 2, 3, 4
13. C
Study online at https://quizlet.com/_jo4rqk
1. Which of the following actions causes the atrioventric- A
ular (AV) valves to close?
A) Increased intraventricular pressure
B) Depolarization at the AV node
C) Ventricular relaxation and backflow of blood
D) Contraction of the atria
2. When stroke volume decreases, which of the following B
could maintain cardiac output?
A) Decreased peripheral resistance
B) Increased heart rate
C) Decreased venous return
D) General vasodilation
3. Which of the following describes the pericardial cavi- B
ty?
A) It contains sufficient fluid to provide a protective
cushion for the heart.
B) It is a potential space containing a very small
amount of serous fluid.
C) It is lined by the endocardium.
D) It is located between the double-walled pericardium
and the epicardium.
4. Which of the following factors greatly improves venous C
return to the heart during strenuous exercise?
A) Rapid emptying of the right side of the heart
B) Forceful action of the valves in the veins
C) Contraction and relaxation of skeletal muscle
D) Peristalsis in the large veins
5. D
, Pathophysiology Chapter 12- Test Bank
Study online at https://quizlet.com/_jo4rqk
The function of the baroreceptors is to:
A) stimulate the parasympathetic or sympathetic ner-
vous system at the sinoatrial (SA) node as needed.
B) adjust blood pressure by changing peripheral resis-
tance.
C) sense a change in blood oxygen and carbon dioxide
levels.
D) signal the cardiovascular control center of changes
in systemic blood pressure.
6. The normal delay in conduction through the AV node D
is essential for:
A) preventing an excessively rapid heart rate.
B) limiting the time for a myocardial contraction.
C) allowing the ventricles to contract before the atria.
D) completing ventricular filling.
7. Which of the following is a result of increased secretion A
of epinephrine?
A) Increased heart rate and force of contraction
B) Decreased stimulation of the SA node and ventri-
cles
C) Vasoconstriction in skeletal muscles and kidneys
D) Vasodilation of cutaneous blood vessels
8. Which of the following causes increased heart rate? D
A) Stimulation of the vagus nerve
B) Increased renin secretion
C) Administration of beta-blocking drugs
D) Stimulation of the sympathetic nervous system
9. The term preload refers to: A
A) volume of venous return.
, Pathophysiology Chapter 12- Test Bank
Study online at https://quizlet.com/_jo4rqk
B) peripheral resistance.
C) stroke volume.
D) cardiac output.
10. Cardiac output refers to: B
A) the amount of blood passing through either of the
atria.
B) the volume of blood ejected by a ventricle in one
minute.
C) the volume of blood ejected by each ventricle in a
single contraction.
D) the total number of heartbeats in one minute.
11. Vasodilation in the skin and viscera results directly C
from:
A) decreased blood pressure.
B) increased parasympathetic stimulation.
C) relaxation of smooth muscle in the arterioles.
D) increased stimulation of alpha-adrenergic recep-
tors.
12. Which of the following are predisposing factors to D
thrombus formation in the circulation?
1. Decreased viscosity of the blood
2. Damaged blood vessel walls
3. Immobility
4. Prosthetic valves
A) 1, 3
B) 2, 4
C) 1, 3, 4
D) 2, 3, 4
13. C
