Question 1

A thrombus in the second branch (not including coronary arteries)  off of the aortic arch would affect the flow of blood to the

Accepted Answer

A)   left side of the head and neck.
B)   myocardium of the heart.
C)   right side of the head and neck and right upper extremity.
D)   left upper extremity.
E)   right arm.F) A) and D)
G) B) and E)

Question 2

Which of the following hormones does NOT influence blood pressure?

Accepted Answer

A)   ADH
B)   epinephrine
C)   atrial natriuretic hormone
D)   aldosterone
E)   growth hormoneF) None of the above
G) A) and C)

Question 3

In which of the following would you detect a weak pulse?

Accepted Answer

A)   hypertension
B)   hemorrhagic shock
C)   fluid excess
D)   increased stroke volume
E)   a healthy young personF) A) and E)
G) A) and D)

Question 4

Which of the following would lead to relaxation of the precapillary sphincter?

Accepted Answer

A)   decreased tissue metabolism
B)   decreased oxygen levels in tissue cells served by the capillary
C)   decreased carbon dioxide concentration in the capillary bed
D)   decreased lactic acid production by cells in the capillary bed
E)   decreased nitric acid levelsF) All of the above
G) B) and E)

Question 5

Angiotensin II

Accepted Answer

A)   causes vasoconstriction.
B)   stimulates the adrenal cortex to release ADH.
C)   is released in response to high blood pressure.
D)   is responsible for increasing urine output.
E)   stimulates peripheral vasodilation.F) B) and E)
G) None of the above

Question 6

Match the term with the best description.
-Laplace's Law

Accepted Answer

A)  arteriosclerosis
B)  produced by turbulent blood flow
C)  blood flow is directly proportional to pressure differences and inversely proportional to resistance
D)  as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse
E)  a characteristic of the venous systemF) D) and E)
G) C) and D)

Question 7

Which type of veins connect two primary capillary networks?

Accepted Answer

A)   portal veins
B)   venous sinuses
C)   venules
D)   vaso vasorumE) All of the above
F) A) and D)

Question 8

Epinephrine

Accepted Answer

A)   increases the heart rate but decreases the stroke volume.
B)   causes vasodilation of coronary blood vessels.
C)   causes vasoconstriction of blood vessels in skeletal muscle.
D)   decreases red blood cell count.
E)   decreases the force of contraction.F) A) and E)
G) B) and E)

Question 9

Capillaries have the slowest velocity because

Accepted Answer

A)   the total cross-sectional area is the smallest.
B)   the resistance is the greatest.
C)   the total cross-sectional area is the largest.
D)   their diameters are the smallest.E) A) and C)
F) None of the above

Question 10

Which of the following would increase resistance to blood flow?

Accepted Answer

A)   a decrease in the length of the vessel
B)   a decrease in the number of red blood cells
C)   a decrease in blood viscosity
D)   a decrease in the radius of the vessel
E)   a decreased hematocritF) All of the above
G) C) and D)

Question 11

Match the term with the best description.
-vascular compliance

Accepted Answer

A)  arteriosclerosis
B)  produced by turbulent blood flow
C)  blood flow is directly proportional to pressure differences and inversely proportional to resistance
D)  as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse
E)  a characteristic of the venous systemF) B) and E)
G) B) and C)

Question 12

Which of the following statements about laminar blood flow is true?

Accepted Answer

A)   The innermost layer of blood moves at the lowest velocity.
B)   Laminar blood flow occurs when blood flows past an area of constriction.
C)   The outermost layer of blood experiences the greatest resistance to flow.
D)   In laminar blood flow, the rapid rate of blood flow exceeds critical velocity.
E)   It makes lots of different noises.F) D) and E)
G) A) and B)

Question 13

What creates the pulse?

Accepted Answer

A)   the diastole of the ventricles
B)   ejection of blood from the left ventricle into the aorta
C)   the compliance of the arteries
D)   constriction of the arteriolesE) B) and C)
F) A) and D)

Question 14

From the heart to body tissues, which of the following sequences of vessels is correct?

Accepted Answer

A)   muscular artery, arteriole, elastic artery, capillary
B)   arteriole, muscular artery, elastic artery, capillary
C)   elastic artery, muscular artery, arteriole, capillary
D)   elastic artery, arteriole, muscular artery, capillary
E)   distributing artery, muscular artery, medium artery, capillaryF) C) and E)
G) B) and D)

Question 15

Which of the following events would cause a decrease in mean arterial blood pressure?

Accepted Answer

A)   an increase in ADH production
B)   release of atrial natriuretic factor
C)   constriction of blood vessels in the skin
D)   activation of the renin-angiotensin mechanism
E)   an increase in aldosterone productionF) B) and E)
G) A) and E)

Question 16

Match the term with the appropriate description.
-necrotic tissue

Accepted Answer

A)  dead tissue
B)  a floating clot
C)  sudden decreased blood supply to a part of the brain
D)  a stationary clot
E)  a localized area of dead cells resulting from ischemiaF) A) and E)
G) All of the above

Question 17

What is the order of the blood vessels that a red blood cell would pass through as the blood leaves the heart, travels to a tissue, and then returns to the heart?

Accepted Answer

A)   arteriole, artery, capillary, vein, venule
B)   capillary, arteriole, artery, vein, venule
C)   artery, arteriole, capillary, venule, vein
D)   vein, capillary, artery, arteriole, venule
E)   artery, venule, capillary, arteriole, veinF) D) and E)
G) A) and E)

Question 18

When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is one of the events that occurs after an increase in blood pressure?

Accepted Answer

A)   Baroreceptors are stimulated.
B)   Action potential frequency to the cardioregulatory center of brain decreases.
C)   Sympathetic stimulation of the heart increases.
D)   Heart rate increases.
E)   An increase in number of action potentials in the cardiac nerve.F) C) and D)
G) A) and B)

Question 19

Match the term with the best description.
-Korotkoff sounds

Accepted Answer

A)  arteriosclerosis
B)  produced by turbulent blood flow
C)  blood flow is directly proportional to pressure differences and inversely proportional to resistance
D)  as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse
E)  a characteristic of the venous systemF) A) and B)
G) C) and D)

Question 20

A thrombus in the first branch (not including coronary arteries)  off of the aortic arch might affect the flow of blood to which of the following structures?

Accepted Answer

A)   right arm
B)   right side of the brain
C)   left side of the brain
D)   left arm
E)   both the right arm and the right side of the brainF) A) and B)
G) C) and E)

Exam 21: Cardiovascular System: Blood Vessels and Circulation

From the heart to body tissues, which of the following sequences of vessels is correct?

Correct AnswerverifiedShow Answer

Match the term with the appropriate description. -necrotic tissue

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Which of the following events would cause a decrease in mean arterial blood pressure?

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When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is one of the events that occurs after an increase in blood pressure?

Correct AnswerverifiedShow Answer

Match the term with the best description. -Laplace's Law

Correct AnswerverifiedShow Answer

A thrombus in the first branch (not including coronary arteries) off of the aortic arch might affect the flow of blood to which of the following structures?

Correct AnswerverifiedShow Answer

Which of the following statements about laminar blood flow is true?

Correct AnswerverifiedShow Answer

In which of the following would you detect a weak pulse?

Correct AnswerverifiedShow Answer

Capillaries have the slowest velocity because

Correct AnswerverifiedShow Answer

Match the term with the best description. -Korotkoff sounds

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Which type of veins connect two primary capillary networks?

Correct AnswerverifiedShow Answer

Match the term with the best description. -vascular compliance

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Angiotensin II

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Which of the following would lead to relaxation of the precapillary sphincter?

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Which of the following hormones does NOT influence blood pressure?

Correct AnswerverifiedShow Answer

Epinephrine

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Which of the following would increase resistance to blood flow?

Correct AnswerverifiedShow Answer

What creates the pulse?

Correct AnswerverifiedShow Answer

A thrombus in the second branch (not including coronary arteries) off of the aortic arch would affect the flow of blood to the

Correct AnswerverifiedShow Answer

What is the order of the blood vessels that a red blood cell would pass through as the blood leaves the heart, travels to a tissue, and then returns to the heart?

Correct AnswerverifiedShow Answer

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