Question 1

Increased respiratory activity facilitates venous return.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following can cause edema?

Accepted Answer

A)   increase in extravasated plasma proteins only
B)   decreased venous pressure only
C)   damage to capillary walls only
D)   both an increase in plasma proteins and a decrease in venous pressure
E)   both damage to capillary walls and an increase in extravasated plasma proteinsF) B) and C)
G) A) and E)

Question 3

Which of the following equations correctly relates flow, pressure, and resistance?

Accepted Answer

A)   flow = pressure + resistance
B)   pressure = flow × resistance
C)   flow = pressure -resistance
D)   flow = pressure × resistance
E)   resistance = flow × pressureF) A) and C)
G) A) and D)

Question 4

Which of the following chemicals' concentration is NOT increased by an elevation in metabolic activity?

Accepted Answer

A)   potassium
B)   oxygen
C)   hydrogen
D)   pyruvic acid
E)   carbon dioxideF) B) and E)
G) A) and E) B

Question 5

The velocity of blood flow is greatest in the arteries and slowest in the capillaries.

Accepted Answer

A) True 
 B)False

Question 6

Due to their location, baroreceptors in the large systemic veins and the heart function primarily to monitor

Accepted Answer

A)   blood volume.
B)   heart rate.
C)   blood flow.
D)   mean arterial pressure.
E)   total peripheral resistance.F) B) and E)
G) A) and E)

Question 7

What structures of the cardiovascular system are innervated by the sympathetic nervous system, but are NOT by the parasympathetic nervous system?

Accepted Answer

A)   ventricular myocardium, arteriolar smooth muscle and venous smooth muscle
B)   arteriolar smooth muscle and venous smooth muscle
C)   SA node and AV node
D)   arteriolar smooth muscle
E)   SA node, AV node, and bundle of HisF) B) and D)
G) A) and B) A

Question 8

Which of the following is a decrease in tissue oxygen?

Accepted Answer

A)   ischemia
B)   active hyperemia
C)   reactive hyperemia
D)   myogenic response
E)   hypoxiaF) A) and B)
G) All of the above

Question 9

Walls of fenestrated capillaries are more permeable than the walls of continuous capillaries.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is the equation relating cardiac output, mean arterial pressure, and total peripheral resistance?

Accepted Answer

A)   CO = TPR/MAP
B)   MAP = CO -TPR
C)   TPR = CO/MAP
D)   MAP + CO + TPR = pulse pressure
E)   MAP = CO × TPRF) B) and E)
G) A) and B)

Question 11

Which of the following equations is correct?

Accepted Answer

A)   cardiac output = mean arterial pressure × total peripheral resistance
B)   resistance = (length × radius4)  / viscosity
C)   cardiac output = stroke volume × heart rate
D)   mean arterial pressure = resistance × viscosity
E)   mean arterial pressure = cardiac output × stroke volumeF) C) and D)
G) D) and E)

Question 12

Chemicals released by metabolically active cells will cause which of the following?

Accepted Answer

A)   relaxation of arteriolar smooth muscle to increase blood flow
B)   contraction of capillary smooth muscle to increase blood flow
C)   contraction of arteriolar smooth muscle to increase blood flow
D)   contraction of arteriolar smooth muscle to decrease blood flow
E)   relaxation of capillary smooth muscle to decrease blood flowF) A) and B)
G) A) and C)

Question 13

During exercise, which of the following tissues receive less blood flow compared to resting conditions?

Accepted Answer

A)   gastrointestinal tract only
B)   brain only
C)   skin only
D)   heart only
E)   both gastrointestinal tract and skinF) D) and E)
G) C) and D)

Question 14

The long -term regulation of arterial blood pressure involves the

Accepted Answer

A)   immediate change in activity of the nervous system.
B)   control of peripheral resistance.
C)   release of hormones over a period of minutes.
D)   control of blood volume by the kidneys.
E)   stimulation of an increase in urine flow through the kidneys.F) B) and D)
G) B) and E)

Question 15

Resistance to blood flow is regulated primarily by what blood vessels?

Accepted Answer

A)   capillaries
B)   ventricle
C)   arterioles
D)   arteries
E)   veinsF) A) and E)
G) B) and E)

Question 16

The chronic elevation in arterial pressure (hypertension)  that occurs in many individuals results in

Accepted Answer

A)   a decreased sensitivity of the baroreceptor that causes pressure to fluctuate.
B)   the resetting of the baroreceptor to a lower pressure.
C)   a gradual increase in pressure that resets the baroreceptors.
D)   the maintenance of a constant error signal by the baroreceptor.
E)   the baroreceptors becoming more sensitive to pressure.F) B) and C)
G) A) and D)

Question 17

Given the following information, calculate the net filtration pressure: capillary hydrostatic pressure = 30 mm Hg; interstitial fluid hydrostatic pressure = 5 mm Hg; capillary oncotic pressure = 25 mm Hg; and interstitial fluid oncotic pressure = 10 mm Hg.

Accepted Answer

A)   -10 mm Hg, favoring reabsorption
B)   10 mm Hg, favoring filtration
C)   -40 mm Hg, favoring reabsorption
D)   40 mm Hg, favoring filtration
E)   0 mm Hg, no net forceF) C) and E)
G) None of the above B

Question 18

The high compliance of veins allows them to

Accepted Answer

A)   act as pressure reservoirs.
B)   provide the driving force for the movement of blood through the vasculature during diastole.
C)   rapidly change central venous pressure with small changes in blood volume.
D)   accommodate large volumes of blood with little change in pressure.
E)   hold only small volumes of blood.F) B) and E)
G) C) and D)

Question 19

Which of the following is the smallest of blood vessels with thin walls allowing for ready exchange of material between blood and tissue?

Accepted Answer

A)   arteriole
B)   vein
C)   capillary
D)   venule
E)   arteryF) C) and D)
G) None of the above

Question 20

A person goes to the doctor and is told his blood pressure is 90/60 and his pulse is 80. Which of the following is FALSE?

Accepted Answer

A)   Mean arterial pressure is 70 mm Hg.
B)   Pulse pressure is 80 mm Hg.
C)   Diastolic pressure is 60.
D)   Systolic pressure is 90 mm Hg.
E)   Heart rate is 80.F) B) and D)
G) B) and C)

Exam 14: The Cardiovascular System: Blood Vessels, Blood Flow, and Blood Pressure

Increased respiratory activity facilitates venous return.

Correct AnswerverifiedShow Answer

Which of the following can cause edema?

Correct AnswerverifiedShow Answer

Which of the following equations correctly relates flow, pressure, and resistance?

Correct AnswerverifiedShow Answer

Which of the following chemicals' concentration is NOT increased by an elevation in metabolic activity?

Correct AnswerverifiedB

The velocity of blood flow is greatest in the arteries and slowest in the capillaries.

Correct AnswerverifiedShow Answer

Due to their location, baroreceptors in the large systemic veins and the heart function primarily to monitor

Correct AnswerverifiedShow Answer

What structures of the cardiovascular system are innervated by the sympathetic nervous system, but are NOT by the parasympathetic nervous system?

Correct AnswerverifiedA

Which of the following is a decrease in tissue oxygen?

Correct AnswerverifiedShow Answer

Walls of fenestrated capillaries are more permeable than the walls of continuous capillaries.

Correct AnswerverifiedShow Answer

Which of the following is the equation relating cardiac output, mean arterial pressure, and total peripheral resistance?

Correct AnswerverifiedShow Answer

Which of the following equations is correct?

Correct AnswerverifiedShow Answer

Chemicals released by metabolically active cells will cause which of the following?

Correct AnswerverifiedShow Answer

During exercise, which of the following tissues receive less blood flow compared to resting conditions?

Correct AnswerverifiedShow Answer

The long -term regulation of arterial blood pressure involves the

Correct AnswerverifiedShow Answer

Resistance to blood flow is regulated primarily by what blood vessels?

Correct AnswerverifiedShow Answer

The chronic elevation in arterial pressure (hypertension) that occurs in many individuals results in

Correct AnswerverifiedShow Answer

Given the following information, calculate the net filtration pressure: capillary hydrostatic pressure = 30 mm Hg; interstitial fluid hydrostatic pressure = 5 mm Hg; capillary oncotic pressure = 25 mm Hg; and interstitial fluid oncotic pressure = 10 mm Hg.

Correct AnswerverifiedB

The high compliance of veins allows them to

Correct AnswerverifiedShow Answer

Which of the following is the smallest of blood vessels with thin walls allowing for ready exchange of material between blood and tissue?

Correct AnswerverifiedShow Answer

A person goes to the doctor and is told his blood pressure is 90/60 and his pulse is 80. Which of the following is FALSE?

Correct AnswerverifiedShow Answer

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B

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A

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B

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