Question 1

Blood that is low in oxygen and rich in carbon dioxide enters the ________ (letter C) of the heart.

Accepted Answer

The answer of Blood that is low in oxygen and...

Question 2

Myocardial infarctions result from ____.

Accepted Answer

A)   damaged heart valves
B)   weakened heart muscle
C)   obstruction of blood to the heart muscle
D)   a serious arrhythmia
E)   a defective SA nodeF) A) and B)
G) A) and C)

Question 3

The pulmonary veins empty the oxygenated blood into the _______ (letter N).

Accepted Answer

The answer of The pulmonary veins empty the oxygenated blood...

Question 4

Body cells surrounding capillaries usually have a ____.

Accepted Answer

A)   high oxygen concentration
B)   low oxygen concentration
C)   low carbon dioxide concentration
D)   high nutrient concentration
E)   low concentration of waste productsF) B) and C)
G) A) and B)

Question 5

Blood enters the ________ (letter F) from the left ventricle to be distributed throughout the body.

Accepted Answer

aorta

Question 6

The atria are separated from each other by a walled membrane known as the ________.

Accepted Answer

The answer of The atria are separated from each other...

Question 7

The ____ is thin and smooth and is the innermost layer of the heart.

Accepted Answer

A)   Epicardium
B)   Myocardium
C)   Endocardium
D)   Pericardium
E)   Pericardial cavityF) All of the above
G) A) and B)

Question 8

The ventricles of the heart are separated by the ________ septum.

Accepted Answer

The answer of The ventricles of the heart are separated...

Question 9

Which of the following does not decrease the blood pressure?

Accepted Answer

A)   Loss of blood
B)   Vasoconstriction
C)   Vasodilation
D)   Dehydration
E)   Decreased cardiac outputF) A) and E)
G) B) and C)

Question 10

A bulge or weak area in the wall of the aorta is called an aortic ________.

Accepted Answer

The answer of A bulge or weak area in the...

Question 11

Which part of the cardiac conduction system receives the impulse from the SA node?

Accepted Answer

A)   SA node
B)   AV node
C)   Bundle of His
D)   Purkinje fibers
E)   Bundle branchesF) A) and B)
G) B) and C)

Question 12

The constriction of the muscular wall of an artery is called ________.

Accepted Answer

The answer of The constriction of the muscular wall of...

Question 13

The strongest blood vessels-those that can constrict or dilate the most-are ____.

Accepted Answer

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

Question 14

The purpose of the four valves of the heart is to ____.

Accepted Answer

A)   control the rate of blood flow
B)   ensure one-way blood flow
C)   keep the blood in the correct chamber
D)   maintain blood pressure
E)   generate rhythmic contractionsF) A) and B)
G) C) and E) B

Question 15

The dilation of the wall of an artery is called ________.

Accepted Answer

The answer of The dilation of the wall of an...

Question 16

The ________ valve (letter M) is situated between the left ventricle and the aorta and prevents blood from flowing back into the left ventricle.

Accepted Answer

The answer of The ________ valve (letter M) is situated...

Question 17

The ________ valve (letter E) has two cusps and is located between the left atrium and the left ventricle.

Accepted Answer

The answer of The ________ valve (letter E) has two...

Question 18

Which part of the cardiac conduction system is known as the pacemaker of the heart?

Accepted Answer

A)   SA node
B)   AV node
C)   Bundle of His
D)   Purkinje fibers
E)   Bundle branchesF) B) and D)
G) A) and B) A

Question 19

The ________ valve (letter L) has three cusps, is situated between the right atrium and the right ventricle, and prevents blood from flowing back into the right atrium when the right ventricle contracts.

Accepted Answer

The answer of The ________ valve (letter L) has three...

Question 20

Mr. Johnson is overweight and admits that he rarely gets any exercise. He smokes, even though the physician warned him to stop smoking after he had a myocardial infarction four years ago. He is in the office today complaining that he just doesn't feel well. He is experiencing nausea and is a little dizzy. You notice that his feet ankles seem swollen and his neck veins are prominent. For which of the following conditions might you expect the physician to test?

Accepted Answer

A)   Endocarditis
B)   Hypertension
C)   Mitral valve prolapse
D)   Congestive heart failure
E)   Acute myocardial infarctionF) A) and D)
G) None of the above

Exam 26: The Cardiovascular System

Blood that is low in oxygen and rich in carbon dioxide enters the ________ (letter C) of the heart.

Correct Answer
verified

Myocardial infarctions result from ____.

Correct Answer
verified

The pulmonary veins empty the oxygenated blood into the _______ (letter N).

Correct Answer
verified

Body cells surrounding capillaries usually have a ____.

Correct Answer
verified

Blood enters the ________ (letter F) from the left ventricle to be distributed throughout the body.

Correct Answer
verified
aorta

The atria are separated from each other by a walled membrane known as the ________.

Correct Answer
verified

The ____ is thin and smooth and is the innermost layer of the heart.

Correct Answer
verified

The ventricles of the heart are separated by the ________ septum.

Correct Answer
verified

Which of the following does not decrease the blood pressure?

Correct Answer
verified

A bulge or weak area in the wall of the aorta is called an aortic ________.

Correct Answer
verified

Which part of the cardiac conduction system receives the impulse from the SA node?

Correct Answer
verified

The constriction of the muscular wall of an artery is called ________.

Correct Answer
verified

The strongest blood vessels-those that can constrict or dilate the most-are ____.

Correct Answer
verified

The purpose of the four valves of the heart is to ____.

Correct Answer
verified
B

The dilation of the wall of an artery is called ________.

Correct Answer
verified

The ________ valve (letter M) is situated between the left ventricle and the aorta and prevents blood from flowing back into the left ventricle.

Correct Answer
verified

The ________ valve (letter E) has two cusps and is located between the left atrium and the left ventricle.

Correct Answer
verified

Which part of the cardiac conduction system is known as the pacemaker of the heart?

Correct Answer
verified
A

The ________ valve (letter L) has three cusps, is situated between the right atrium and the right ventricle, and prevents blood from flowing back into the right atrium when the right ventricle contracts.

Correct Answer
verified

Correct Answer
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Exam 26: The Cardiovascular System

Blood that is low in oxygen and rich in carbon dioxide enters the ________ (letter C) of the heart.

Correct AnswerverifiedShow Answer

Myocardial infarctions result from ____.

Correct AnswerverifiedShow Answer

The pulmonary veins empty the oxygenated blood into the _______ (letter N).

Correct AnswerverifiedShow Answer

Body cells surrounding capillaries usually have a ____.

Correct AnswerverifiedShow Answer

Blood enters the ________ (letter F) from the left ventricle to be distributed throughout the body.

Correct Answerverifiedaorta

The atria are separated from each other by a walled membrane known as the ________.

Correct AnswerverifiedShow Answer

The ____ is thin and smooth and is the innermost layer of the heart.

Correct AnswerverifiedShow Answer

The ventricles of the heart are separated by the ________ septum.

Correct AnswerverifiedShow Answer

Which of the following does not decrease the blood pressure?

Correct AnswerverifiedShow Answer

A bulge or weak area in the wall of the aorta is called an aortic ________.

Correct AnswerverifiedShow Answer

Which part of the cardiac conduction system receives the impulse from the SA node?

Correct AnswerverifiedShow Answer

The constriction of the muscular wall of an artery is called ________.

Correct AnswerverifiedShow Answer

The strongest blood vessels-those that can constrict or dilate the most-are ____.

Correct AnswerverifiedShow Answer

The purpose of the four valves of the heart is to ____.

Correct AnswerverifiedB

The dilation of the wall of an artery is called ________.

Correct AnswerverifiedShow Answer

The ________ valve (letter M) is situated between the left ventricle and the aorta and prevents blood from flowing back into the left ventricle.

Correct AnswerverifiedShow Answer

The ________ valve (letter E) has two cusps and is located between the left atrium and the left ventricle.

Correct AnswerverifiedShow Answer

Which part of the cardiac conduction system is known as the pacemaker of the heart?

Correct AnswerverifiedA

The ________ valve (letter L) has three cusps, is situated between the right atrium and the right ventricle, and prevents blood from flowing back into the right atrium when the right ventricle contracts.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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aorta

Correct Answer
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Correct Answer
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Correct Answer
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B

Correct Answer
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A

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