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. 
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. A

Question 2

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. 
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. D

Question 3

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. 
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. E

Question 4

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. 
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.

Question 5

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

Question 6

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 flow 
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 flow

Question 7

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. 
A) right atrium. 
B) left atrium. 
C) right ventricle. 
D) left ventricle. 
E) coronary sinus.

Question 8

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 circulations 
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 circulations

Question 9

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. 
A) the period of ejection. 
B) AV node depolarization. 
C) passive ventricular filling. 
D) atrial contraction. 
E) isovolumetric relaxation.

Question 10

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. 
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.

Question 11

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

Question 12

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. 
A) the lungs and the heart. 
B) the heart. 
C) the body and the heart. 
D) the lungs and the body.

Question 13

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

Question 14

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; visceral 
A)  fibrous; parietal 
B)  visceral; fibrous 
C)  parietal; visceral 
D)  visceral; parietal 
E)  fibrous; visceral

Question 15

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 output 
A)  end-diastolic volume 
B)  end-systolic volume 
C)  stroke volume 
D)  cardiac output

Question 16

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) tachycardia 
A) bradycardia 
B) atrial fibrillation 
C) second-degree AV node block 
D) tachycardia

Question 17

Blood in the superior vena cava will enter the _____.

Accepted Answer

A) aorta 
B) right atrium 
C) pulmonary trunk 
D) pulmonary arteries 
E) pulmonary veins 
A) aorta 
B) right atrium 
C) pulmonary trunk 
D) pulmonary arteries 
E) pulmonary veins

Question 18

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 veins 
A) aorta 
B) right atrium 
C) pulmonary trunk 
D) pulmonary arteries 
E) pulmonary veins

Question 19

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

Question 20

The cardioregulatory center of the brain is located in the

Accepted Answer

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

Exam 20: Cardiovascular System: the Heart

Concerning heart sounds,which of the following is correct?

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

When ventricular pressure exceeds atrial pressure,the

Which of the following is NOT true about the heart?

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)

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

Blood in the pulmonary veins returns to the

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

The period of isovolumetric contraction is immediately followed by

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

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

The right atrium receives blood from

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

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.

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

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

Blood in the superior vena cava will enter the _____.

Which vessels transport blood to the right and left lungs?

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

The cardioregulatory center of the brain is located in the

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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.