Question 1

Circulation to the spleen demonstrates a(n)

Accepted Answer

A)   simple pathway, as one artery delivers blood and one vein drains the organ.
B)   simple pathway, as its two capillary beds are separated by a portal vein.
C)   anastomosis, as one artery delivers blood and one vein drains the organ.
D)   anastomosis, as its two capillary beds are separated by a portal vein.E) A) and B)
F) A) and C)

Question 2

________ capillaries have pores within each endothelial cell.

Accepted Answer

The answer of ________ capillaries have pores within each endothelial...

Question 3

Imagine yourself sitting in an awkward position in an uncomfortable chair that is depriving part of your leg from normal blood flow. This deprivation of adequate perfusion will result in what sort of local changes in your leg?

Accepted Answer

A)   Decreases in carbon dioxide and hydrogen ions will cause vasodilation.
B)   Buildup of carbon dioxide and hydrogen ions will cause vasoconstriction.
C)   Buildup of carbon dioxide and hydrogen ions will cause vasodilation.
D)   Decreases in oxygen and potassium will cause vasoconstriction.
E)   Increases in oxygen and potassium will cause vasodilation.F) A) and D)
G) A) and C)

Question 4

Which statement accurately describes total blood flow?

Accepted Answer

A)   Total blood flow equals cardiac output and is a fixed number given that there is a finite amount of blood in the body.
B)   Total blood flow equals cardiac output and can vary significantly over time with activity levels.
C)   Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in liters.
D)   Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in beats per minute.
E)   Changes in total blood flow are accompanied by equivalent changes in local blood flow in all areas of the body.F) B) and E)
G) C) and D)

Question 5

The liver receives oxygenated blood from the common hepatic artery and deoxygenated blood from the hepatic portal vein.

Accepted Answer

A) True 
 B)False

Question 6

The hepatic portal system allows for the processing of

Accepted Answer

A)   drugs and toxins in the blood so that they are secreted directly into the urine.
B)   bacteria that grow in the large intestine but need to be regulated.
C)   nutrients and toxins absorbed from the gastrointestinal system into the blood.
D)   hormones that are secreted by glands and must be directed to their target organs.E) A) and D)
F) C) and D)

Question 7

When physical exertion has ended and the body is at rest, veins demonstrate

Accepted Answer

A)   vasodilation so that they function as blood reservoirs.
B)   vasodilation so that blood is shifted toward the rest of the circulatory system.
C)   vasoconstriction so that they function as blood reservoirs.
D)   vasoconstriction so that blood is shifted toward the rest of the circulatory system.E) All of the above
F) A) and B)

Question 8

The ________ run(s)  adjacent to the medial surface of the upper limb and eventually helps form the axillary vein.

Accepted Answer

A)   cephalic vein
B)   radial veins
C)   ulnar veins
D)   brachial veins
E)   basilic veinF) C) and E)
G) All of the above

Question 9

Tendons and ligaments have

Accepted Answer

A)   a high degree of vascularization, therefore high perfusion and rapid healing.
B)   a high degree of vascularization, therefore high perfusion and slow healing.
C)   a high degree of vascularization, therefore low perfusion and slow healing.
D)   a low degree of vascularization, therefore high perfusion and rapid healing.
E)   a low degree of vascularization, therefore low perfusion and slow healing.F) C) and D)
G) None of the above

Question 10

Gas, nutrient, and waste exchange occur between the ________ and the tissues of the body.

Accepted Answer

A)   arteries
B)   veins
C)   capillaries
D)   capillaries and veins
E)   capillaries and arteriesF) D) and E)
G) A) and C)

Question 11

Excitation of the vasomotor center results in

Accepted Answer

A)   increased sympathetic activity and predominantly more vasoconstriction than vasodilation.
B)   increased parasympathetic activity and predominantly more vasodilation than vasoconstriction.
C)   increased autonomic activity that increases heart rate and dilates blood vessels.
D)   decreased autonomic activity that decreases heart rate and constricts blood vessels.
E)   redistribution of blood flow away from the skeletal muscles and toward the skin.F) A) and E)
G) A) and D)

Question 12

The formation of new blood vessels is a process known as ________.

Accepted Answer

The answer of The formation of new blood vessels is...

Question 13

During exercise, blood flow to skeletal muscles increases. What other blood flow changes occur?

Accepted Answer

A)   Blood flow to coronary vessels increases, and flow to abdominal organs decreases.
B)   Blood flow to skin decreases, and flow to the kidneys increases.
C)   Blood flow to coronary vessels increases, and flow to skin and brain decreases.
D)   Blood flow to skin, heart, and kidneys decreases.E) A) and B)
F) A) and C)

Question 14

Select all that contribute to the cerebral arterial circle.

Accepted Answer

A)   Internal carotid arteries
B)   External carotid arteries
C)   Anterior cerebral arteries
D)   Posterior communicating arteriesE) None of the above
F) B) and C)

Question 15

Which is the most common type of capillary?

Accepted Answer

A)   Fenestrated
B)   Sinusoids
C)   Continuous
D)   Venules
E)   DiscontinuousF) A) and E)
G) A) and D)

Question 16

At a capillary bed, a vasoconstrictor

Accepted Answer

A)   constricts local arterioles, thereby increasing pressure and increasing local blood flow.
B)   stimulates precapillary sphincters and decreases local blood flow.
C)   dilates local arterioles, thereby increasing pressure and increasing local blood flow.
D)   inhibits precapillary sphincters to relax and decreases local blood flow.
E)   constricts precapillary sphincters and thereby increases local blood flow.F) B) and E)
G) A) and B)

Question 17

Increases in angiotensin II levels cause decreases in blood pressure.

Accepted Answer

A) True 
 B)False

Question 18

If someone's blood pressure were listed as 110/65 mmHg, then their mean arterial pressure (MAP)  would be

Accepted Answer

A)   70 mmHg.
B)   80 mmHg.
C)   90 mmHg.
D)   100 mmHg.
E)   110 mmHg.F) A) and C)
G) C) and D)

Question 19

If someone's blood pressure were listed as 125/75 mmHg, then their pulse pressure would be

Accepted Answer

A)   125 mmHg.
B)   5/3.
C)   50 mmHg.
D)   40 mmHg.
E)   100 mmHg.F) A) and E)
G) B) and C)

Question 20

Concerning the exchange between blood and interstitial fluid at systemic capillaries,

Accepted Answer

A)   more fluid is absorbed and reabsorbed than is filtered.
B)   more fluid is filtered than reabsorbed.
C)   the fluid reabsorbed into the capillary exactly matches the amount filtered by the capillary.D) A) and B)
E) A) and C)

Exam 20: Cardiovascular System: Vessels and Circulation

Increases in angiotensin II levels cause decreases in blood pressure.

Correct AnswerverifiedShow Answer

Which is the most common type of capillary?

Correct AnswerverifiedShow Answer

At a capillary bed, a vasoconstrictor

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Select all that contribute to the cerebral arterial circle.

Correct AnswerverifiedShow Answer

Concerning the exchange between blood and interstitial fluid at systemic capillaries,

Correct AnswerverifiedShow Answer

Circulation to the spleen demonstrates a(n)

Correct AnswerverifiedShow Answer

The liver receives oxygenated blood from the common hepatic artery and deoxygenated blood from the hepatic portal vein.

Correct AnswerverifiedShow Answer

During exercise, blood flow to skeletal muscles increases. What other blood flow changes occur?

Correct AnswerverifiedShow Answer

Tendons and ligaments have

Correct AnswerverifiedShow Answer

The ________ run(s) adjacent to the medial surface of the upper limb and eventually helps form the axillary vein.

Correct AnswerverifiedShow Answer

Gas, nutrient, and waste exchange occur between the ________ and the tissues of the body.

Correct AnswerverifiedShow Answer

When physical exertion has ended and the body is at rest, veins demonstrate

Correct AnswerverifiedShow Answer

Which statement accurately describes total blood flow?

Correct AnswerverifiedShow Answer

If someone's blood pressure were listed as 125/75 mmHg, then their pulse pressure would be

Correct AnswerverifiedShow Answer

If someone's blood pressure were listed as 110/65 mmHg, then their mean arterial pressure (MAP) would be

Correct AnswerverifiedShow Answer

The formation of new blood vessels is a process known as ________.

Correct AnswerverifiedShow Answer

Imagine yourself sitting in an awkward position in an uncomfortable chair that is depriving part of your leg from normal blood flow. This deprivation of adequate perfusion will result in what sort of local changes in your leg?

Correct AnswerverifiedShow Answer

The hepatic portal system allows for the processing of

Correct AnswerverifiedShow Answer

Excitation of the vasomotor center results in

Correct AnswerverifiedShow Answer

________ capillaries have pores within each endothelial cell.

Correct AnswerverifiedShow Answer

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