Question 1

The visceral pericardium is the same as the

Accepted Answer

A)   mediastinum.
B)   parietal pericardium.
C)   epicardium.
D)   myocardium.
E)   endocardium.F) A) and E)
G) A) and D)

Question 2

If a wound overwhelms the clotting mechanism and leads to serious hemorrhage and drop in blood pressure, what compensations does the body have to defend cardiac output?

Accepted Answer

Acutely, the autonomic nervous system un...

Question 3

________ refers to all the factors that resist blood flow in the entire circulatory system.

Accepted Answer

Total peri...

Question 4

Stroke volume depends on

Accepted Answer

A)   end-diastolic volume.
B)   the contractility of the ventricle.
C)   the pressure required to pump blood into the aorta.
D)   all of the above
E)   none of the aboveF) D) and E)
G) A) and E)

Question 5

In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus, esophagus, and trachea called the

Accepted Answer

A)   pleural space.
B)   pericardial space.
C)   mediastinum.
D)   cardiac notch.
E)   ventral cavity.F) C) and E)
G) B) and E)

Question 6

Which of the following factors will increase the net filtration pressure to move fluid out of capillaries?

Accepted Answer

A)   decreased plasma albumen
B)   increased blood hydrostatic pressure
C)   decreased tissue hydrostatic pressure
D)   all of the above
E)   none of the aboveF) A) and B)
G) A) and E)

Question 7

The amount of blood returning to the heart is the ________.

Accepted Answer

The answer of The amount of blood returning to the...

Question 8

An equivalent term for epicardium is ________.

Accepted Answer

visceral p...

Question 9

The inferior point of the heart is called the ________.

Accepted Answer

The answer of The inferior point of the heart is...

Question 10

Pacemaker cells in the SA node

Accepted Answer

A)   have a well-defined resting potential.
B)   generate action potentials that spread to the myocardium.
C)   are highly contractile.
D)   all of the above
E)   none of the aboveF) A) and B)
G) A) and E)

Question 11

Complications related to arteriosclerosis account for roughly ________ percent of deaths in the United States.

Accepted Answer

A)   30
B)   60
C)   20
D)   50
E)   25F) A) and E)
G) B) and E)

Question 12

Tetanic muscle contractions don't occur in a normal cardiac muscle because

Accepted Answer

A)   cardiac muscle tissue contracts on its own.
B)   neural stimulation is lacking.
C)   the refractory period lasts until the muscle relaxes.
D)   the refractory period ends before the muscle reaches peak tension.
E)   potassium channels outnumber sodium channels.F) D) and E)
G) B) and C)

Question 13

The space between the pleural cavities is called the ________.

Accepted Answer

The answer of The space between the pleural cavities is...

Question 14

Figure 18-2 Cardiac Cycle
Use Figure 18-2 to answer the following questions:
-What occurs at "B" on the graph?

Accepted Answer

A)   semilunar valve opens
B)   semilunar valve closes
C)   AV valve opens
D)   end-systolic volumeE) A) and D)
F) A) and C)

Question 15

The volume of blood ejected from each ventricle during a contraction is called the

Accepted Answer

A)   end-diastolic volume.
B)   end-systolic volume.
C)   stroke volume.
D)   cardiac output.
E)   cardiac reserve.F) B) and C)
G) C) and D)

Question 16

In which of the following would the blood flow be highest?

Accepted Answer

A)   a vessel 0.5 cm in diameter and 2 meters long
B)   a vessel 1.0 cm in diameter and 10 meters long
C)   a vessel 0.5 cm in diameter and 4 meters long
D)   a vessel 1.0 cm in diameter and 2 meters longE) C) and D)
F) None of the above

Question 17

________ is the regulation of blood flow by local mechanisms within a capillary bed.

Accepted Answer

The answer of ________ is the regulation of blood flow...

Question 18

Which of the following descriptions matches the term near the left fifth intercostal space?

Accepted Answer

A)   pericardial cavity
B)   visceral pericardium
C)   apex of heart
D)   aorta
E)   right atriumF) None of the above
G) B) and C)

Question 19

Which of the following would be greater?

Accepted Answer

A)   the end-diastolic volume when the heart rate is 150 beats/minute
B)   the end-diastolic volume when the heart rate is 60 beats/minuteC) A) and B)
D) undefined

Question 20

The first blood vessels to branch from the aorta are the ________ arteries.

Accepted Answer

A)   pulmonary
B)   coronary
C)   circumflex
D)   carotid
E)   subclavianF) None of the above
G) B) and D)

Exam 18: The Heart and Cardiovascular Function

________ is the regulation of blood flow by local mechanisms within a capillary bed.

Correct AnswerverifiedShow Answer

Stroke volume depends on

Correct AnswerverifiedShow Answer

The first blood vessels to branch from the aorta are the ________ arteries.

Correct AnswerverifiedShow Answer

Tetanic muscle contractions don't occur in a normal cardiac muscle because

Correct AnswerverifiedShow Answer

Which of the following would be greater?

Correct AnswerverifiedShow Answer

The visceral pericardium is the same as the

Correct AnswerverifiedShow Answer

If a wound overwhelms the clotting mechanism and leads to serious hemorrhage and drop in blood pressure, what compensations does the body have to defend cardiac output?

Correct AnswerverifiedAcutely, the autonomic nervous system un...View AnswerShow Answer

Which of the following descriptions matches the term near the left fifth intercostal space?

Correct AnswerverifiedShow Answer

In which of the following would the blood flow be highest?

Correct AnswerverifiedShow Answer

Figure 18-2 Cardiac Cycle Use Figure 18-2 to answer the following questions: -What occurs at "B" on the graph?

Correct AnswerverifiedShow Answer

The inferior point of the heart is called the ________.

Correct AnswerverifiedShow Answer

Which of the following factors will increase the net filtration pressure to move fluid out of capillaries?

Correct AnswerverifiedShow Answer

The space between the pleural cavities is called the ________.

Correct AnswerverifiedShow Answer

An equivalent term for epicardium is ________.

Correct Answerverifiedvisceral p...View AnswerShow Answer

Pacemaker cells in the SA node

Correct AnswerverifiedShow Answer

________ refers to all the factors that resist blood flow in the entire circulatory system.

Correct AnswerverifiedTotal peri...View AnswerShow Answer

Complications related to arteriosclerosis account for roughly ________ percent of deaths in the United States.

Correct AnswerverifiedShow Answer

The amount of blood returning to the heart is the ________.

Correct AnswerverifiedShow Answer

The volume of blood ejected from each ventricle during a contraction is called the

Correct AnswerverifiedShow Answer

In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus, esophagus, and trachea called the

Correct AnswerverifiedShow Answer

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Acutely, the autonomic nervous system un...
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visceral p...
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Total peri...
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