Question 1

According to Poiseuille's law, a small decrease in the diameter of a vessel will

Accepted Answer

A)   dramatically decrease blood flow.
B)   slightly decrease blood flow.
C)   not affect blood flow.
D)   slightly increase blood flow.
E)   dramatically increase blood flow.F) All of the above
G) B) and C)

Question 2

A force that causes the movement of fluid out of the capillary is

Accepted Answer

A)   blood pressure.
B)   positive interstitial pressure.
C)   blood colloid osmotic pressure.
D)   critical closing pressure.
E)   lymph pressure.F) A) and E)
G) A) and B)

Question 3

According to the Laplace's law, as the diameter of a blood vessel increases, the force applied to the wall of that vessel ________.

Accepted Answer

A)   increases
B)   decreases
C)   increases, then decreases
D)   remains the same
E)   None of the choices are correct.F) D) and E)
G) None of the above

Question 4

Which vein drains blood from the left side of the thorax and esophagus into the left brachiocephalic vein?

Accepted Answer

A)   Hemiazygos vein
B)   Left azygos vein
C)   Internal thoracic vein
D)   Accessory hemiazygos veinE) All of the above
F) C) and D)

Question 5

For the following, match the term with the best description.
-Arteriosclerosis

Accepted Answer

A)  A characteristic of aging arteries
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 E)
G) A) and C)

Question 6

Which of the following acts as a storage area for blood?

Accepted Answer

A)   Aorta
B)   Veins
C)   Capillaries
D)   Arterioles
E)   ArteriesF) A) and B)
G) All of the above

Question 7

Which type of vessel has the greatest compliance?

Accepted Answer

A)   Arteries
B)   Veins
C)   Arterioles
D)   CapillariesE) B) and D)
F) B) and C)

Question 8

Which of the following best describes arteries?

Accepted Answer

A)   Strong, rigid vessels that carry blood under high pressure
B)   Thin, elastic vessels that transport blood under low pressure
C)   Elastic vessels that connect arterioles and venules
D)   Fragile vessels that are prone to rupture
E)   Strong, elastic vessels that carry blood under high pressureF) A) and B)
G) A) and E)

Question 9

When the blood pressure of a vessel drops below the critical closing pressure for that vessel,

Accepted Answer

A)   there is hypertension.
B)   there is an increase in blood flow.
C)   there is an increase in peripheral resistance.
D)   the vessel collapses.
E)   the vessel expands.F) A) and D)
G) A) and C)

Question 10

Which type of capillaries have large fenestrae and are found in endocrine glands?

Accepted Answer

A)   Sinusoidal capillaries
B)   Continuous capillaries
C)   Fenestrated capillaries
D)   SinusoidsE) B) and C)
F) All of the above

Question 11

What do the left common carotid, brachiocephalic artery, and left subclavian all have in common?

Accepted Answer

A)   They all are found in the abdominal cavity.
B)   They all carry blood to the head.
C)   They are all coronary vessels.
D)   They all branch from the aortic arch.E) B) and D)
F) A) and D)

Question 12

Which of the following best explains the drop in blood pressure that occurs when one goes from lying down to standing up?

Accepted Answer

A)   The heart rate decreases. This is due to the baroreceptor reflex reducing sympathetic output to the SA node.
B)   An increase in afterload causes a drop in stroke volume, cardiac output, and blood pressure.
C)   An increase in preload causes a drop in stroke volume, cardiac output, and blood pressure.
D)   Venous compliance allows blood to pool in the legs, decreasing venous return. This causes a drop in cardiac output and blood pressure.E) A) and B)
F) C) and D)

Question 13

Match the term with the appropriate description.
-Thrombosis

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) B) and C)
G) All of the above

Question 14

Arteriosclerosis results in decreased compliance, which in turn causes the pulse pressure to ________.

Accepted Answer

A)   increase
B)   decrease
C)   increase, then decrease
D)   decrease, then increase
E)   remain the sameF) D) and E)
G) A) and B)

Question 15

Arteriosclerosis is characterized by

Accepted Answer

A)   a thickening of the tunica adventitia.
B)   increased elasticity of the tunica media.
C)   decreased resistance to blood flow.
D)   an enlargement of the lumen of the vessel.
E)   Both "thickening of the tunica intima" and "loss of elasticity in the tunica media" are correct.F) A) and C)
G) None of the above

Question 16

The pelvic area is supplied with blood from the ________ arteries.

Accepted Answer

The answer of The pelvic area is supplied with blood...

Question 17

Atherosclerosis is the

Accepted Answer

A)   hypertrophy of the tunica intima.
B)   stretching of arterial walls.
C)   inflammation of veins.
D)   deposition of plaques in arterial walls.E) B) and D)
F) B) and C)

Question 18

Which type of capillary has the largest diameter?

Accepted Answer

A)   Sinusoids
B)   Continuous capillaries
C)   Sinusoidal capillaries
D)   Venous sinuses
E)   Fenestrated capillariesF) A) and E)
G) D) and E)

Question 19

The azygos vein drains blood from the ________ into the superior vena cava.

Accepted Answer

A)   head
B)   upper arm
C)   kidneys
D)   thorax
E)   abdominal wallF) A) and E)
G) D) and E)

Question 20

For the following, match the term with the best description.
-Vascular compliance

Accepted Answer

A)  A characteristic of aging arteries
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 C)
G) A) and B)

Exam 21: Cardiovascular System: Blood Vessels and Circulation

A force that causes the movement of fluid out of the capillary is

Correct AnswerverifiedShow Answer

Arteriosclerosis is characterized by

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Arteriosclerosis results in decreased compliance, which in turn causes the pulse pressure to ________.

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The pelvic area is supplied with blood from the ________ arteries.

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Which of the following best describes arteries?

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According to the Laplace's law, as the diameter of a blood vessel increases, the force applied to the wall of that vessel ________.

Correct AnswerverifiedShow Answer

According to Poiseuille's law, a small decrease in the diameter of a vessel will

Correct AnswerverifiedShow Answer

Which vein drains blood from the left side of the thorax and esophagus into the left brachiocephalic vein?

Correct AnswerverifiedShow Answer

For the following, match the term with the best description. -Arteriosclerosis

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When the blood pressure of a vessel drops below the critical closing pressure for that vessel,

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Which of the following best explains the drop in blood pressure that occurs when one goes from lying down to standing up?

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For the following, match the term with the best description. -Vascular compliance

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Which of the following acts as a storage area for blood?

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The azygos vein drains blood from the ________ into the superior vena cava.

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Which type of capillary has the largest diameter?

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Which type of vessel has the greatest compliance?

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Atherosclerosis is the

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What do the left common carotid, brachiocephalic artery, and left subclavian all have in common?

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Which type of capillaries have large fenestrae and are found in endocrine glands?

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Match the term with the appropriate description. -Thrombosis

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