Question 1

Concerning heart sounds,which of the following is correct?

Accepted Answer

A)  The first heart sound occurs at the beginning of ventricular systole.
B)  The second heart sound is heard when the AV valves are closing.
C)  The first heart sound is the sound of the semilunar valves closing.
D)  The second heart sound occurs when blood flows into the superior vena cava.
E)  The first heart sound occurs at the beginning of ventricular diastole.F) A) and B)
G) B) and E) A

Question 2

The cardioregulatory center of the brain is located in the

Accepted Answer

A)  hypothalamus.
B)  medulla oblongata.
C)  cerebellum.
D)  cerebrum.
E)  diencephalons.F) A) and E)
G) A) and D)

Question 3

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a(n)

Accepted Answer

A)  angioplasty.
B)  coronary bypass.
C)  urokinase injection.
D)  tissue plasminogen activation.
E)  angiogram.F) B) and C)
G) A) and D)

Question 4

The right atrium receives blood from

Accepted Answer

A)  the lungs and the heart.
B)  the heart.
C)  the body and the heart.
D)  the lungs and the body.E) A) and C)
F) None of the above

Question 5

Blood in the pulmonary veins returns to the

Accepted Answer

A)  right atrium.
B)  left atrium.
C)  right ventricle.
D)  left ventricle.
E)  coronary sinus.F) A) and D)
G) None of the above

Question 6

Which of the following is NOT a function of the heart?

Accepted Answer

A)  providing a location for gas exchange between oxygen and carbon dioxide
B)  regulating blood supply to tissues depending on need
C)  generating blood pressure through contraction
D)  routing blood to either the pulmonary or systemic circulationsE) A) and B)
F) None of the above

Question 7

Which of the following might increase the risk for cardiovascular disease?

Accepted Answer

A)  stopping smoking
B)  exercise
C)  maintaining normal cholesterol levels
D)  chronic stress
E)  lots of fiber in the dietF) A) and C)
G) D) and E)

Question 8

All of the following cardiac measurements will increase during exercise except ____________________.

Accepted Answer

A)   end-diastolic volume
B)   end-systolic volume
C)   stroke volume
D)   cardiac outputE) None of the above
F) A) and B)

Question 9

Occlusion of which of the following would primarily damage the posterior wall of the heart?

Accepted Answer

A)  circumflex artery
B)  pulmonary artery
C)  right marginal artery
D)  coronary sinus artery
E)  right coronary arteryF) A) and C)
G) A) and D)

Question 10

Which of the following is NOT true about the heart?

Accepted Answer

A)  The heart is about the size of a closed fist.
B)  The heart is located in the mediastinum.
C)  The apex of the heart is directed superiorly and to the left.
D)  Knowing the heart's position is important for effective CPR.E) B) and C)
F) All of the above

Question 11

The dicrotic notch in the aortic pressure curve is due to the

Accepted Answer

A)  increase in intraventricular pressure during ejection.
B)  backflow of blood toward the ventricles.
C)  closure of the left AV valve.
D)  elasticity of the arterial wall.
E)  closure of the semilunar valves.F) D) and E)
G) All of the above

Question 12

What must occur during exercise to ensure adequate oxygen delivery to cardiac muscle?

Accepted Answer

A)   There must be increased oxygen release to cardiac muscle
B)   There must be decreased oxygen content to skeletal muscle
C)   There must be a decreased heart rate
D)   There must be increased coronary blood flowE) A) and D)
F) A) and B)

Question 13

When ventricular pressure exceeds atrial pressure,the

Accepted Answer

A)  ejection occurs.
B)  atria pump blood into the ventricles.
C)  ventricle is in diastole.
D)  blood is pumped into the atrium.
E)  AV valves close.F) A) and C)
G) B) and E) E

Question 14

What abnormal heart rhythm could be caused by an elevated body temperature,excessive sympathetic stimulation,or toxic conditions?

Accepted Answer

A)  bradycardia
B)  atrial fibrillation
C)  second-degree AV node block
D)  tachycardiaE) All of the above
F) C) and D)

Question 15

Blood in the superior vena cava will enter the _____.

Accepted Answer

A)  aorta
B)  right atrium
C)  pulmonary trunk
D)  pulmonary arteries
E)  pulmonary veinsF) A) and E)
G) C) and E)

Question 16

The inner lining of the pericardial cavity is the ____________ pericardium,whereas the outer part of the heart wall is called the epicardium or the _______________ pericardium.

Accepted Answer

A)   fibrous; parietal
B)   visceral; fibrous
C)   parietal; visceral
D)   visceral; parietal
E)   fibrous; visceralF) A) and C)
G) B) and D)

Question 17

The AV valve that is located on the same side of the heart as the origin of the aorta is the

Accepted Answer

A)  bicuspid or mitral valve.
B)  tricuspid valve.
C)  aortic semilunar valve.
D)  pulmonary semilunar valve.
E)  coronary sinus valve.F) C) and D)
G) A) and B)

Question 18

Why is it important to use an antibiotic other than ampicillin in the treatment of bacterial pneumonia?

Accepted Answer

A)   Because antibiotics,such as ampicillin destroy the cell walls of cardiac muscle cells.
B)   Because antibiotics,such as ampicillin cause the cells lining blood vessels to endocytose bacteria and deposit them in cardiac muscle tissue.
C)   Because antibiotics,such as ampicillin are not effective in the treatment of bacterial pneumonia.
D)   Because antibiotics,such as ampicillin destroy the cell walls of bacteria which cause a toxin to be released that will destroy cardiac muscle cells.E) All of the above
F) A) and C) D

Question 19

The period of isovolumetric contraction is immediately followed by

Accepted Answer

A)  the period of ejection.
B)  AV node depolarization.
C)  passive ventricular filling.
D)  atrial contraction.
E)  isovolumetric relaxation.F) C) and D)
G) None of the above

Question 20

Which vessels transport blood to the right and left lungs?

Accepted Answer

A)  aorta
B)  right atrium
C)  pulmonary trunk
D)  pulmonary arteries
E)  pulmonary veinsF) None of the above
G) B) and E)

Exam 20: Cardiovascular System: the Heart

Concerning heart sounds,which of the following is correct?

Correct AnswerverifiedA

The cardioregulatory center of the brain is located in the

Correct AnswerverifiedShow Answer

The procedure whereby a small balloon is placed into a partially occluded coronary artery and then inflated to increase blood flow through the artery is called a(n)

Correct AnswerverifiedShow Answer

The right atrium receives blood from

Correct AnswerverifiedShow Answer

Blood in the pulmonary veins returns to the

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the heart?

Correct AnswerverifiedShow Answer

Which of the following might increase the risk for cardiovascular disease?

Correct AnswerverifiedShow Answer

All of the following cardiac measurements will increase during exercise except ____________________.

Correct AnswerverifiedShow Answer

Occlusion of which of the following would primarily damage the posterior wall of the heart?

Correct AnswerverifiedShow Answer

Which of the following is NOT true about the heart?

Correct AnswerverifiedShow Answer

The dicrotic notch in the aortic pressure curve is due to the

Correct AnswerverifiedShow Answer

What must occur during exercise to ensure adequate oxygen delivery to cardiac muscle?

Correct AnswerverifiedShow Answer

When ventricular pressure exceeds atrial pressure,the

Correct AnswerverifiedE

What abnormal heart rhythm could be caused by an elevated body temperature,excessive sympathetic stimulation,or toxic conditions?

Correct AnswerverifiedShow Answer

Blood in the superior vena cava will enter the _____.

Correct AnswerverifiedShow Answer

The inner lining of the pericardial cavity is the ____________ pericardium,whereas the outer part of the heart wall is called the epicardium or the _______________ pericardium.

Correct AnswerverifiedShow Answer

The AV valve that is located on the same side of the heart as the origin of the aorta is the

Correct AnswerverifiedShow Answer

Why is it important to use an antibiotic other than ampicillin in the treatment of bacterial pneumonia?

Correct AnswerverifiedD

The period of isovolumetric contraction is immediately followed by

Correct AnswerverifiedShow Answer

Which vessels transport blood to the right and left lungs?

Correct AnswerverifiedShow Answer

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E

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The inner lining of the pericardial cavity is the pericardium,whereas the outer part of the heart wall is called the epicardium or the ___ pericardium.

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D

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