Question 1

Which of the following best describes the function of the pulmonary artery?

Accepted Answer

A)  It carries unoxygenated blood to the right atrium.
B)  It supplies lung tissue with oxygenated blood.
C)  It carries oxygenated blood from the lungs to the left atrium.
D)  It carries unoxygenated blood to the pulmonary capillaries,where gas exchange occurs.E) A) and D)
F) B) and C)

Question 2

Which of the following is least true of the aortic valve?

Accepted Answer

A)  It is also called the left semilunar valve.
B)  It "sees" oxygenated blood.
C)  Blood flows from the ventricle through this valve into the pulmonary artery.
D)  An incompetent aortic valve allows blood to leak from the aorta back into the left ventricle.E) A) and D)
F) A) and B)

Question 3

The epicardium is a layer of the

Accepted Answer

A)  myocardium.
B)  diaphragm.
C)  pericardium.
D)  endocardium.E) A) and B)
F) None of the above C

Question 4

Which of the following must precede ventricular contraction?

Accepted Answer

A)  Ventricular systole
B)  "Lubb-dupp"
C)  Ventricular depolarization
D)  Closing of the AV valvesE) None of the above
F) B) and D)

Question 5

What is the cause of ventricular hypertrophy?

Accepted Answer

A)  The heart muscle is not receiving sufficient oxygen.
B)  The ventricle is working too hard.
C)  The person has an infection.
D)  There is excess fluid accumulating in the pericardial space.E) A) and D)
F) A) and C)

Question 6

The atrioventricular node (AV node)

Accepted Answer

A)  is the pacemaker of the heart.
B)  is located in the upper part of the right atrium.
C)  has a rate that is normally faster than the SA node.
D)  delays the electrical signal coming from the atria into the ventricles.E) A) and D)
F) All of the above

Question 7

Which group is incorrect?

Accepted Answer

A)  Semilunar valves: pulmonic,aortic
B)  Structures that carry oxygenated blood: pulmonary veins,left ventricle,aorta
C)  Layers of the heart: epicardium,myocardium,endocardium
D)  Abnormal heart rates: tachycardia,bradycardia,normal sinus rhythmE) B) and D)
F) A) and B) D

Question 8

Which structure is not perfused by the blood that is pumped from the right ventricle to the left ventricle?

Accepted Answer

A)  Mitral valve
B)  Pulmonary artery
C)  Pulmonary veins
D)  AortaE) A) and B)
F) A) and C)

Question 9

The pacemaker of the heart is located in the upper wall of the

Accepted Answer

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

Question 10

Which cavity first receives unoxygenated blood from the vena cava?

Accepted Answer

A)  Right ventricle
B)  Left atrium
C)  Left ventricle
D)  Right atriumE) None of the above
F) A) and C) D

Question 11

Which of the following is an electrical event?

Accepted Answer

A)  "Lubb-dupp"
B)  Actin and myosin interaction
C)  Murmur
D)  DepolarizationE) None of the above
F) All of the above

Question 12

The mitral and the bicuspid valves

Accepted Answer

A)  are semilunar valves.
B)  are both located on the right side of the heart.
C)  "see" only unoxygenated blood.
D)  are the same valves.E) B) and C)
F) A) and D)

Question 13

Which of the following is a correct valvular position when the atria are contracting?

Accepted Answer

A)  The tricuspid valve is closed.
B)  The pulmonic valve is open.
C)  Both semilunar valves are open.
D)  Both AV valves are open.E) B) and C)
F) A) and B)

Question 14

Which of the following is true of the myocardium?

Accepted Answer

A)  Is nourished by the coronary arteries
B)  Contracts in response to electrical signals
C)  Is thicker in the left ventricle than in the right ventricle
D)  All of the aboveE) None of the above
F) B) and D)

Question 15

Which of the following is true regarding cardiac blood flow?

Accepted Answer

A)  In the normal heart,coronary blood flow increases with exercise.
B)  In a diseased heart coronary blood flow may be maximal at rest.
C)  In a diseased heart exertion may cause ischemia and angina.
D)  All of the above are true.E) All of the above
F) B) and D)

Question 16

The purpose of the right heart is to pump blood

Accepted Answer

A)  to the systemic circulation.
B)  into the aorta.
C)  to the left anterior descending and circumflex arteries.
D)  to the lungs for oxygenation.E) A) and D)
F) A) and C)

Question 17

Stenosis of which valve causes right ventricular hypertrophy?

Accepted Answer

A)  Mitral
B)  Tricuspid
C)  Right semilunar
D)  Left semilunarE) All of the above
F) A) and B)

Question 18

Which of the following is least descriptive of the myocardium?

Accepted Answer

A)  Supplied with blood by the coronary arteries
B)  Thicker in the ventricles than the atria
C)  Thicker in the left ventricle than the right ventricle
D)  Thicker in the left atrium than the right ventricleE) All of the above
F) A) and D)

Question 19

What is the significance of elevated plasma levels of AST,CPK,and LDH?

Accepted Answer

A)  Myocardial damage as in myocardial infarction
B)  A normal myocardial response to exercise
C)  An increase in coronary blood flow
D)  Early-onset exertional anginaE) All of the above
F) A) and C)

Question 20

Which of the following is least related to the mitral valve?

Accepted Answer

A)  Left heart
B)  Bicuspid
C)  Semilunar
D)  Chordae tendineaeE) B) and D)
F) A) and B)

Exam 16: Anatomy of the Heart

Which of the following best describes the function of the pulmonary artery?

Correct AnswerverifiedShow Answer

Which of the following is least true of the aortic valve?

Correct AnswerverifiedShow Answer

The epicardium is a layer of the

Correct AnswerverifiedC

Which of the following must precede ventricular contraction?

Correct AnswerverifiedShow Answer

What is the cause of ventricular hypertrophy?

Correct AnswerverifiedShow Answer

The atrioventricular node (AV node)

Correct AnswerverifiedShow Answer

Which group is incorrect?

Correct AnswerverifiedD

Which structure is not perfused by the blood that is pumped from the right ventricle to the left ventricle?

Correct AnswerverifiedShow Answer

The pacemaker of the heart is located in the upper wall of the

Correct AnswerverifiedShow Answer

Which cavity first receives unoxygenated blood from the vena cava?

Correct AnswerverifiedD

Which of the following is an electrical event?

Correct AnswerverifiedShow Answer

The mitral and the bicuspid valves

Correct AnswerverifiedShow Answer

Which of the following is a correct valvular position when the atria are contracting?

Correct AnswerverifiedShow Answer

Which of the following is true of the myocardium?

Correct AnswerverifiedShow Answer

Which of the following is true regarding cardiac blood flow?

Correct AnswerverifiedShow Answer

The purpose of the right heart is to pump blood

Correct AnswerverifiedShow Answer

Stenosis of which valve causes right ventricular hypertrophy?

Correct AnswerverifiedShow Answer

Which of the following is least descriptive of the myocardium?

Correct AnswerverifiedShow Answer

What is the significance of elevated plasma levels of AST,CPK,and LDH?

Correct AnswerverifiedShow Answer

Which of the following is least related to the mitral valve?

Correct AnswerverifiedShow Answer

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D

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