Question 1

During ventricular systole, the

Accepted Answer

A)   atria are contracting.
B)   blood is entering the ventricles.
C)   AV valves are closed.
D)   pressure in the ventricles remains constant.
E)   pressure in the aorta remains constant.F) A) and B)
G) A) and E)

Question 2

Depolarization of the ventricles is represented on an electrocardiogram by the

Accepted Answer

A)   P wave.
B)   T wave.
C)   S wave.
D)   QRS complex.
E)   PR complex.F) A) and C)
G) All of the above

Question 3

________ is when the heart can't maintain adequate cardiac output.

Accepted Answer

A)   Heart failure
B)   Fibrillation
C)   Flutter
D)   Murmur
E)   Coronary heart diseaseF) A) and E)
G) None of the above

Question 4

Considering the left ventricle, why does isovolumetric ventricular contraction occur during ventricularsystole?

Accepted Answer

A)   The ventricle needs to pressurize the blood to close the aortic valve.
B)   Ventricular pressure is greater than atrial pressure so the ventricle cannot eject blood.
C)   The bicuspid valve needs time to shut before the ventricle can eject blood.
D)   Aortic pressure is higher than ventricular pressure and the ventricle must pressurize the blood to open the aortic valve.
E)   The ventricle is still filling with blood and therefore cannot eject blood during this time.F) A) and B)
G) A) and E)

Question 5

Which valve(s)  cusps open up toward the base of the heart?

Accepted Answer

A)   right and left AV valves
B)   aortic and pulmonary valves
C)   left AV and aortic valves
D)   right AV and pulmonary valves
E)   right AV, left AV, aortic and pulmonary valvesF) C) and D)
G) None of the above

Question 6

Blood returning to the heart from the systemic circuit first enters the

Accepted Answer

A)   right atrium.
B)   right ventricle.
C)   left atrium.
D)   left ventricle.
E)   conus arteriosus.F) B) and C)
G) A) and B)

Question 7

In a procedure known as ________, an inflatable balloon at the end of a catheter is used to press plaqueback against the vessel wall.

Accepted Answer

A)   balloon angioplasty
B)   coronary arterial bypass graft
C)   intravenous catheterization
D)   ablation
E)   atherectomyF) C) and D)
G) B) and C)

Question 8

The right pulmonary veins carry ________ blood to the ________.

Accepted Answer

A)   deoxygenated; left atrium
B)   oxygenated; right lung
C)   deoxygenated; superior vena cava
D)   deoxygenated; right atrium
E)   oxygenated; left atriumF) A) and D)
G) D) and E)

Question 9

The amount of blood returning to the heart is the

Accepted Answer

A)   afterload.
B)   stroke volume.
C)   end-diastolic volume.
D)   cardiac reserve.
E)   venous return.F) A) and D)
G) A) and C)

Question 10

The ________ carry blood toward the heart.

Accepted Answer

A)   arterioles
B)   arteries
C)   veins
D)   lacteals
E)   capillariesF) A) and D)
G) A) and C)

Question 11

Each of the following factors will increase cardiac output except increased

Accepted Answer

A)   venous return.
B)   parasympathetic stimulation.
C)   sympathetic stimulation.
D)   heart rate.
E)   force of contraction.F) C) and E)
G) B) and C)

Question 12

The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle iscalled

Accepted Answer

A)   emesis.
B)   flutter.
C)   fibrillation.
D)   regurgitation.
E)   stenosis.F) C) and D)
G) D) and E)

Question 13

The right ventricle pumps blood to the

Accepted Answer

A)   right and left lungs.
B)   left ventricle.
C)   left atrium.
D)   aorta.
E)   right atrium.F) B) and C)
G) C) and D)

Question 14

The heart beats approximately ________ times each day.

Accepted Answer

A)   1,000
B)   10,000
C)   100,000
D)   1,000,000
E)   10,000,000F) A) and C)
G) C) and D)

Question 15

Figure 20-1 The Heart
 
Use Figure 20-1 to answer the following questions:
-Identify the structure(s)  labeled "8."

Accepted Answer

A)   moderator band
B)   pectinate muscles
C)   papillary muscles
D)   trabeculae carneae
E)   chordae tendineaeF) A) and B)
G) A) and C)

Question 16

The ________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Accepted Answer

A)   epicardium
B)   myocardium
C)   endocardium
D)   visceral pericardium
E)   mediastinumF) A) and B)
G) B) and D)

Question 17

If a patient's resting cardiac output is 5.6 l/min and on a stress test she elevated her heart rate to amaximum of 176 beats/min with a stroke volume of 115 ml/beat, what is her cardiac reserve? Show your work.

Accepted Answer

Cardiac reserve equals maximum...

Question 18

The amount of blood remaining in the ventricle when the semilunar valve closes is the

Accepted Answer

A)   ejection fraction.
B)   end-diastole volume.
C)   start-diastolic volume.
D)   end-systolic volume.
E)   stroke volume.F) D) and E)
G) A) and E)

Exam 20: The Heart

The heart beats approximately ________ times each day.

Correct Answer
verified

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: -Identify the structure(s) labeled "8."

Correct Answer
verified

The right ventricle pumps blood to the

Correct Answer
verified

Blood returning to the heart from the systemic circuit first enters the

Correct Answer
verified

In a procedure known as ________, an inflatable balloon at the end of a catheter is used to press plaqueback against the vessel wall.

Correct Answer
verified

During ventricular systole, the

Correct Answer
verified

The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle iscalled

Correct Answer
verified

The ________ carry blood toward the heart.

Correct Answer
verified

Which valve(s) cusps open up toward the base of the heart?

Correct Answer
verified

The amount of blood remaining in the ventricle when the semilunar valve closes is the

Correct Answer
verified

The right pulmonary veins carry blood to the .

Correct Answer
verified

Considering the left ventricle, why does isovolumetric ventricular contraction occur during ventricularsystole?

Correct Answer
verified

Each of the following factors will increase cardiac output except increased

Correct Answer
verified

Depolarization of the ventricles is represented on an electrocardiogram by the

Correct Answer
verified

________ is when the heart can't maintain adequate cardiac output.

Correct Answer
verified

If a patient's resting cardiac output is 5.6 l/min and on a stress test she elevated her heart rate to amaximum of 176 beats/min with a stroke volume of 115 ml/beat, what is her cardiac reserve? Show your work.

Correct Answer
verified
Cardiac reserve equals maximum...
View Answer

The amount of blood returning to the heart is the

Correct Answer
verified

The ________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Correct Answer
verified

Exam 20: The Heart

The heart beats approximately ________ times each day.

Correct AnswerverifiedShow Answer

Figure 20-1 The Heart Use Figure 20-1 to answer the following questions: -Identify the structure(s) labeled "8."

Correct AnswerverifiedShow Answer

The right ventricle pumps blood to the

Correct AnswerverifiedShow Answer

Blood returning to the heart from the systemic circuit first enters the

Correct AnswerverifiedShow Answer

In a procedure known as ________, an inflatable balloon at the end of a catheter is used to press plaqueback against the vessel wall.

Correct AnswerverifiedShow Answer

During ventricular systole, the

Correct AnswerverifiedShow Answer

The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle iscalled

Correct AnswerverifiedShow Answer

The ________ carry blood toward the heart.

Correct AnswerverifiedShow Answer

Which valve(s) cusps open up toward the base of the heart?

Correct AnswerverifiedShow Answer

The amount of blood remaining in the ventricle when the semilunar valve closes is the

Correct AnswerverifiedShow Answer

The right pulmonary veins carry ________ blood to the ________.

Correct AnswerverifiedShow Answer

Considering the left ventricle, why does isovolumetric ventricular contraction occur during ventricularsystole?

Correct AnswerverifiedShow Answer

Each of the following factors will increase cardiac output except increased

Correct AnswerverifiedShow Answer

Depolarization of the ventricles is represented on an electrocardiogram by the

Correct AnswerverifiedShow Answer

________ is when the heart can't maintain adequate cardiac output.

Correct AnswerverifiedShow Answer

If a patient's resting cardiac output is 5.6 l/min and on a stress test she elevated her heart rate to amaximum of 176 beats/min with a stroke volume of 115 ml/beat, what is her cardiac reserve? Show your work.

Correct AnswerverifiedCardiac reserve equals maximum...View AnswerShow Answer

The amount of blood returning to the heart is the

Correct AnswerverifiedShow Answer

The ________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium.

Correct AnswerverifiedShow Answer

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The right pulmonary veins carry blood to the .

Correct Answer
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Correct Answer
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verified
Cardiac reserve equals maximum...
View Answer

Correct Answer
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Correct Answer
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