Question 1

A venule becomes a vein when its diameter is greater than ____ micrometers.

Accepted Answer

A)  1
B)  10
C)  100
D)  1000E) B) and C)
F) None of the above

Question 2

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

Accepted Answer

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

Question 3

The vessels that supply the lower limbs are the

Accepted Answer

A)  common carotids.
B)  internal iliac arteries.
C)  subclavian arteries
D)  external iliac arteries.
E)  vertebral arteries.F) A) and B)
G) C) and E)

Question 4

The velocity of blood flow through capillaries is

Accepted Answer

A)  rapid,due to their small total cross sectional area.
B)  rapid,which prevents pooling in lower extremeties.
C)  slow,due to small total cross-sectional area,low friction and high pressure.
D)  slow,which allows sufficient time for exchange of gases and nutrients between blood and tissues.E) A) and B)
F) A) and C)

Question 5

A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels.

Accepted Answer

A)  vasa vasorum
B)  companion vessels
C)  distributing arteries
D)  fenestrated arteries
E)  thoroughfare channelsF) A) and E)
G) A) and D)

Question 6

Considering the bulk flow that occurs at capillary beds,the lymphatic system is needed to

Accepted Answer

A)  reabsorb excess fluid from the interstitial fluid.
B)  filter additional fluid to the interstitial fluid.
C)  connect arterioles to venules and provide a shunt from the true capillaries.
D)  regulate colloid osmotic pressure so that filtration levels do not decline.E) None of the above
F) All of the above

Question 7

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,the...

Question 8

The left renal vein,right renal vein,right suprarenal vein,and right gonadal vein merge directly into the

Accepted Answer

A)  superior vena cava.
B)  great saphenous vein.
C)  inferior vena cava.
D)  common iliac vein.
E)  obturator vein.F) A) and C)
G) None of the above

Question 9

Some large molecules,such as fatty acids,are transported between capillaries and tissues by vesicular transport.

Accepted Answer

A) True 
 B)False

Question 10

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) B) and E)
G) A) and B)

Question 11

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) A) and E)
G) A) and B)

Question 12

Oxygen and carbon dioxiode are transported between the blood and interstitial fluid by way of

Accepted Answer

A)  exocytosis and endocytosis by endothelial cells.
B)  pinocytosis using fluid-filled vesicles.
C)  diffusion from areas of higher concentration to lower concentration.
D)  active transport (using ATP) by protein carriers of endothelial cells.E) A) and D)
F) A) and C)

Question 13

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 B)
G) A) and C)

Question 14

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 B)
F) B) and C)

Question 15

The azygos vein is located on the left side of the vertebrae.

Accepted Answer

A) True 
 B)False

Question 16

The _____________ vein runs alongside the lateral aspect of the upper limb and eventually drains into the axillary vein.

Accepted Answer

The answer of The _____________ vein runs alongside the lateral...

Question 17

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) B) and C)
F) A) and C)

Question 18

_________________ capillaries have pores within each endothelial cell.

Accepted Answer

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

Question 19

Formed primarily of tunica intima and strengthened by elastic and collagen fibers,the _________________ in veins prevent blood from pooling.

Accepted Answer

The answer of Formed primarily of tunica intima and strengthened...

Question 20

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

Exam 20: Cardiovascular System: Vessels and Circulation

The velocity of blood flow through capillaries is

Correct AnswerverifiedShow Answer

Peripheral resistance is

Correct AnswerverifiedShow Answer

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

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

The vessels that supply the lower limbs are the

Correct AnswerverifiedShow Answer

_________________ capillaries have pores within each endothelial cell.

Correct AnswerverifiedShow Answer

The azygos vein is located on the left side of the vertebrae.

Correct AnswerverifiedShow Answer

A venule becomes a vein when its diameter is greater than ____ micrometers.

Correct AnswerverifiedShow Answer

Which statement accurately describes total blood flow

Correct AnswerverifiedShow Answer

Some large molecules,such as fatty acids,are transported between capillaries and tissues by vesicular transport.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The left renal vein,right renal vein,right suprarenal vein,and right gonadal vein merge directly into the

Correct AnswerverifiedShow Answer

Oxygen and carbon dioxiode are transported between the blood and interstitial fluid by way of

Correct AnswerverifiedShow Answer

Formed primarily of tunica intima and strengthened by elastic and collagen fibers,the _________________ in veins prevent blood from pooling.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The _____________ vein runs alongside the lateral aspect of the upper limb and eventually drains into the axillary vein.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels.

Correct AnswerverifiedShow Answer

Considering the bulk flow that occurs at capillary beds,the lymphatic system is needed to

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified