Question 1

The inferior vena cava is classified as a(n)

Accepted Answer

A)  large vein.
B)  venule.
C)  medium vein.
D)  arteriovenule.
E)  venous valve.F) A) and B)
G) A) and E)

Question 2

When renin is released from the kidney,

Accepted Answer

A)  angiotensin I is converted to angiotensin II.
B)  angiotensinogen is converted into angiotensin I.
C)  angiotensin I increases salt reabsorption at the kidneys.
D)  blood pressure goes down.
E)  blood flow to the kidneys decreases.F) D) and E)
G) A) and E)

Question 3

________ conduct fluid from the interstitial space back to the venous system.(Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

The answer of ________ conduct fluid from the interstitial space...

Question 4

The layer between the tunica media and the tunica externa in a large artery is the

Accepted Answer

A)  tunica intima.
B)  external elastic membrane.
C)  tunica media.
D)  internal elastic membrane.
E)  tunica externa.F) A) and B)
G) None of the above

Question 5

The blood vessel that branches from the subclavian artery to supply the anterior wall of the chest is the ________.

Accepted Answer

internal t...

Question 6

Which of the following is the innermost layer of a blood vessel?

Accepted Answer

A)  tunica intima
B)  external elastic membrane
C)  tunica media
D)  internal elastic membrane
E)  tunica externaF) A) and E)
G) None of the above

Question 7

Averaged over a few heartbeats,venous return is ________ cardiac output.

Accepted Answer

A)  much higher than
B)  somewhat higher than
C)  equal to
D)  somewhat lower than
E)  much lower thanF) All of the above
G) D) and E)

Question 8

The pressure difference between the base of the aorta and the right atrium is the ________.

Accepted Answer

circulator...

Question 9

Increased levels of carbon dioxide in the blood will result in decreased

Accepted Answer

A)  heart rate.
B)  cardiac output.
C)  blood flow to the lungs.
D)  parasympathetic stimulation of the heart.
E)  sympathetic stimulation of the heart.F) C) and E)
G) All of the above

Question 10

Figure 21-2 Veins
Use Figure 21-2 to answer the following question:
-Identify the vein labeled "15."

Accepted Answer

A)  axillary
B)  brachial
C)  radial
D)  basilic
E)  ulnarF) D) and E)
G) C) and D)

Question 11

Which of the following conditions is least likely to lead to renin release?

Accepted Answer

A)  renal artery thrombus
B)  vasospasm of the renal arteries
C)  circulatory shock
D)  increased sympathetic activity
E)  hypertensionF) A) and E)
G) A) and D)

Question 12

Which of the following changes doesn't occur during exercise compared to rest?

Accepted Answer

A)  cardiac output is higher
B)  heart blood flow is higher
C)  skin blood flow is lower
D)  abdominal viscera blood flow is lower
E)  kidney blood flow is lowerF) D) and E)
G) All of the above

Question 13

The term ________ refers to the pressure in the arterial side of the circulatory system.

Accepted Answer

The answer of The term ________ refers to the pressure...

Question 14

The blood vessel that supplies blood to the brain from the anterior direction is the ________.

Accepted Answer

internal c...

Question 15

________ form elaborate networks within tissues that allow very slow blood flow.(Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

The answer of ________ form elaborate networks within tissues that...

Question 16

Which of these contributes to the formation of the popliteal vein?

Accepted Answer

A)  internal iliac
B)  small saphenous and great saphenous
C)  anterior and posterior tibial and fibular
D)  peroneal and popliteal
E)  great saphenous and posterior tibialF) B) and C)
G) All of the above

Question 17

Edema may occur when

Accepted Answer

A)  the plasma concentration of protein is reduced.
B)  endothelial permeability goes up.
C)  capillary hydrostatic pressure is elevated.
D)  blood pressure is high.
E)  All of the answers are correct.F) C) and D)
G) B) and E)

Question 18

During exercise

Accepted Answer

A)  venous return increases.
B)  both cardiac output and stroke volume increase.
C)  vasodilation occurs at the active skeletal muscles.
D)  venous return increases and vasodilation occurs at the active skeletal muscles.
E)  All of the answers are correct.F) A) and E)
G) A) and D)

Question 19

The smallest arterial branches are called the

Accepted Answer

A)  precapillary arterioles.
B)  arterioles.
C)  capillaries.
D)  venules.
E)  veins.F) B) and D)
G) A) and D)

Question 20

Blood from the brain is drained by the ________.

Accepted Answer

internal j...

Exam 21: Blood Vessels and Circulation

The pressure difference between the base of the aorta and the right atrium is the ________.

Correct Answerverifiedcirculator...View AnswerShow Answer

Edema may occur when

Correct AnswerverifiedShow Answer

During exercise

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Which of the following is the innermost layer of a blood vessel?

Correct AnswerverifiedShow Answer

Increased levels of carbon dioxide in the blood will result in decreased

Correct AnswerverifiedShow Answer

The smallest arterial branches are called the

Correct AnswerverifiedShow Answer

The blood vessel that supplies blood to the brain from the anterior direction is the ________.

Correct Answerverifiedinternal c...View AnswerShow Answer

Which of the following changes doesn't occur during exercise compared to rest?

Correct AnswerverifiedShow Answer

Averaged over a few heartbeats,venous return is ________ cardiac output.

Correct AnswerverifiedShow Answer

________ form elaborate networks within tissues that allow very slow blood flow.(Note: Be sure to capitalize the first letter of your answer).

Correct AnswerverifiedShow Answer

The inferior vena cava is classified as a(n)

Correct AnswerverifiedShow Answer

Which of the following conditions is least likely to lead to renin release?

Correct AnswerverifiedShow Answer

Blood from the brain is drained by the ________.

Correct Answerverifiedinternal j...View AnswerShow Answer

Which of these contributes to the formation of the popliteal vein?

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Figure 21-2 Veins Use Figure 21-2 to answer the following question: -Identify the vein labeled "15."

Correct AnswerverifiedShow Answer

The blood vessel that branches from the subclavian artery to supply the anterior wall of the chest is the ________.

Correct Answerverifiedinternal t...View AnswerShow Answer

The layer between the tunica media and the tunica externa in a large artery is the

Correct AnswerverifiedShow Answer

________ conduct fluid from the interstitial space back to the venous system.(Note: Be sure to capitalize the first letter of your answer).

Correct AnswerverifiedShow Answer

The term ________ refers to the pressure in the arterial side of the circulatory system.

Correct AnswerverifiedShow Answer

When renin is released from the kidney,

Correct AnswerverifiedShow Answer

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internal c...
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internal j...
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internal t...
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