Question 1

The largest arteries of the body are classified as

Accepted Answer

A)   muscular arteries.
B)   arterioles.
C)   elastic arteries.
D)   muscular and elastic because they have the same dimensions.
E)   None of the answers is correct.F) C) and D)
G) C) and E)

Question 2

A portal system

Accepted Answer

A)   includes a functional end artery that makes an arterial anastomosis.
B)   is a simple circulatory system with an arteriovenous anastomosis.
C)   is one in which blood flows through two capillary beds before being sent back to the heart.
D)   is one in which circulation to a large organ involves only one artery and one main (portal)  vein.
E)   is one in which multiple arteries converge on one organ or body region.F) D) and E)
G) None of the above

Question 3

The artery that arises from the descending aorta and is immediately inferior to the celiac trunk is the ________ artery.

Accepted Answer

A)   inferior mesenteric
B)   right gastric
C)   common hepatic
D)   superior mesenteric
E)   splenicF) A) and B)
G) D) and E)

Question 4

Superior phrenic arteries supply the ________ and emerge from the ________.

Accepted Answer

A)   diaphragm; descending abdominal aorta
B)   diaphragm; descending thoracic aorta
C)   stomach; descending abdominal aorta
D)   pancreas; descending abdominal aorta
E)   esophagus; descending thoracic aortaF) B) and C)
G) A) and B)

Question 5

Peripheral resistance is

Accepted Answer

A)   directly related to both vessel length and radius.
B)   inversely related to both vessel length and radius.
C)   directly related to vessel length and inversely related to vessel radius.
D)   inversely related to vessel length and directly related to vessel radius.E) A) and C)
F) A) and B)

Question 6

The great saphenous vein is a deep vein and the popliteal vein is a superficial vein.

Accepted Answer

A) True 
 B)False

Question 7

In arteries, the thickest layer of the wall is the

Accepted Answer

A)   tunica externa.
B)   tunica media.
C)   tunica intima.
D)   tunica adventitia.
E)   None of the answers are correct because all the layers are of the same dimension.F) C) and E)
G) A) and B)

Question 8

Although local blood flow to different organs varies from time to time (based on demand), the distribution of blood vessels in the various organs of the body is fairly similar.

Accepted Answer

A) True 
 B)False

Question 9

Which sequence indicates the correct pathway for blood in the arterial flow of the upper appendage?

Accepted Answer

A)   Axillary artery - brachial artery - subclavian artery - ulnar artery
B)   Brachial artery - subclavian artery - axillary artery - radial artery
C)   Axillary artery - subclavian artery - radial artery - ulnar artery
D)   Subclavian artery - brachial artery - axillary artery - radial artery
E)   Subclavian artery - axillary artery - brachial artery - ulnar arteryF) D) and E)
G) B) and C)

Question 10

Because of their role in material exchanges, the ________ are considered to be the functional units of the cardiovascular system.

Accepted Answer

The answer of Because of their role in material exchanges,...

Question 11

The superior vena cava is formed by the merging of the ________ veins.

Accepted Answer

A)   internal thoracic
B)   inferior epigastric
C)   lumbar
D)   brachiocephalic
E)   internal jugularF) A) and B)
G) A) and C)

Question 12

In general, as an artery's diameter decreases, the artery walls show

Accepted Answer

A)   a decrease in the relative amount of smooth muscle and an increase in the relative amount of elastic fibers.
B)   an increase in the relative amount of smooth muscle and a decrease in the relative amount of elastic fibers.
C)   an increase in relative amounts of smooth muscle and elastic fibers and a decrease in endothelium.
D)   a decrease in both smooth muscle and elastic fibers and an increase in areolar connective tissue.E) A) and B)
F) None of the above

Question 13

Atrial natriuretic peptide stimulates

Accepted Answer

A)   vasoconstriction, increased urine output, and therefore increased blood pressure.
B)   vasodilation, increased urine output, and therefore decreased blood pressure.
C)   vasoconstriction, decreased urine output, and therefore decreased blood pressure.
D)   vasodilation, decreased urine output, and therefore increased blood pressure.
E)   vasoconstriction, sodium retention, and therefore increased blood pressure.F) None of the above
G) A) and E)

Question 14

At the bifurcation of the aorta in the pelvic region, the ________ artery arises to supply the sacrum and coccyx.

Accepted Answer

A)   lumbar
B)   posterior intercostal
C)   subclavian
D)   median sacral
E)   femoralF) B) and D)
G) B) and E)

Question 15

Which fetal circulatory structure shunts blood from the pulmonary trunk to the aorta?

Accepted Answer

A)   Foramen ovale
B)   Ductus venosus
C)   Ductus arteriosus
D)   Umbilical vein
E)   Umbilical arteryF) C) and D)
G) A) and D)

Question 16

Angiotensin II causes

Accepted Answer

A)   increased heart rate, vasodilation, and less urine formation.
B)   decreased heart rate, vasoconstriction, and increased urine formation.
C)   vasoconstriction, decrease urine formation, and increased thirst.
D)   decreased thirst, vasodilation, and increased urine formation.
E)   vasoconstriction, increased urine formation, and decreased thirst.F) D) and E)
G) B) and C)

Question 17

As blood moves from the arterial end to the venous end of a capillary, net filtration pressure

Accepted Answer

A)   increases, as blood hydrostatic pressure rises.
B)   increases, as blood colloid osmotic pressure rises.
C)   decreases, as blood hydrostatic pressure decreases.
D)   decreases, as blood colloid osmotic pressure decreases.
E)   remains the same, as rises in blood osmotic pressure are offset by declines in tissue osmotic pressure.F) A) and B)
G) B) and D)

Question 18

Valves in veins

Accepted Answer

A)   make the use of a skeletal muscle pump unnecessary for venous blood flow.
B)   are the leading cause of high blood pressure.
C)   are found only in the largest veins.
D)   cause venous blood flow to go in only one direction.
E)   are formed of the tunica media.F) C) and D)
G) All of the above

Question 19

The driving force propelling blood through the circulatory system is the difference in blood pressure from the beginning of a blood vessel to its end. This difference is known as the blood pressure ________.

Accepted Answer

The answer of The driving force propelling blood through the...

Question 20

As the popliteal vein travels up the leg, it curves to the anterior portion of the thigh and is renamed the ________ vein.

Accepted Answer

The answer of As the popliteal vein travels up the...

Exam 20: Cardiovascular System: Vessels and Circulation

As blood moves from the arterial end to the venous end of a capillary, net filtration pressure

Correct AnswerverifiedShow Answer

Atrial natriuretic peptide stimulates

Correct AnswerverifiedShow Answer

Although local blood flow to different organs varies from time to time (based on demand), the distribution of blood vessels in the various organs of the body is fairly similar.

Correct AnswerverifiedShow Answer

A portal system

Correct AnswerverifiedShow Answer

The largest arteries of the body are classified as

Correct AnswerverifiedShow Answer

Valves in veins

Correct AnswerverifiedShow Answer

In arteries, the thickest layer of the wall is the

Correct AnswerverifiedShow Answer

The artery that arises from the descending aorta and is immediately inferior to the celiac trunk is the ________ artery.

Correct AnswerverifiedShow Answer

As the popliteal vein travels up the leg, it curves to the anterior portion of the thigh and is renamed the ________ vein.

Correct AnswerverifiedShow Answer

Because of their role in material exchanges, the ________ are considered to be the functional units of the cardiovascular system.

Correct AnswerverifiedShow Answer

Peripheral resistance is

Correct AnswerverifiedShow Answer

Which fetal circulatory structure shunts blood from the pulmonary trunk to the aorta?

Correct AnswerverifiedShow Answer

Angiotensin II causes

Correct AnswerverifiedShow Answer

The driving force propelling blood through the circulatory system is the difference in blood pressure from the beginning of a blood vessel to its end. This difference is known as the blood pressure ________.

Correct AnswerverifiedShow Answer

The superior vena cava is formed by the merging of the ________ veins.

Correct AnswerverifiedShow Answer

The great saphenous vein is a deep vein and the popliteal vein is a superficial vein.

Correct AnswerverifiedShow Answer

Superior phrenic arteries supply the ________ and emerge from the ________.

Correct AnswerverifiedShow Answer

At the bifurcation of the aorta in the pelvic region, the ________ artery arises to supply the sacrum and coccyx.

Correct AnswerverifiedShow Answer

Which sequence indicates the correct pathway for blood in the arterial flow of the upper appendage?

Correct AnswerverifiedShow Answer

In general, as an artery's diameter decreases, the artery walls show

Correct AnswerverifiedShow Answer

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Superior phrenic arteries supply the and emerge from the .

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