Question 1

The sinoatrial node,also called the pacemaker,sets the tempo of the heart beat.

Accepted Answer

A) True 
 B)False

Question 2

A clumping reaction caused by antibodies in the blood plasma is

Accepted Answer

A)   clotting.
B)   agglutination.
C)   constriction.
D)   atherosclerosis.
E)   inflammation.

Question 3

Capillary beds are networks of capillaries that connect arterioles and venules.

Accepted Answer

A) True 
 B)False

Question 4

How do icefish transport oxygen in their blood for homeostatic purposes?

Accepted Answer

A)   in red blood cells
B)   in white blood cells
C)   in platelets
D)   in plasma
E)   on hemoglobin

Question 5

What mutations occurred in typical icefish that prevent production of hemoglobin?

Accepted Answer

A)   fragmentation of both the alpha and beta genes
B)   deletion of the alpha gene and fragmentation of the beta gene
C)   deletion of both the alpha and beta genes
D)   fragmentation of the alpha gene and deletion of the beta gene
E)   destruction of red blood cells in the bone marrow

Question 6

Systolic pressure reflects the

Accepted Answer

A)   contraction of the atria.
B)   relaxation of the atria.
C)   contraction of the ventricles.
D)   relaxation of the ventricles.
E)   heart rate.

Question 7

The upper chambers of the mammalian heart are the

Accepted Answer

A)   ventricles.
B)   arteries.
C)   vascular cavities.
D)   atria.
E)   sinuses.

Question 8

The large vessels of the circulatory system that carry blood away from the heart are

Accepted Answer

A)   veins.
B)   capillaries.
C)   arteries.
D)   lymph vessels.
E)   sieve tubes.

Question 9

If you compared the blood pressure of an insect to that of a mammal,you would expect the pressure to be lower in the insect.

Accepted Answer

A) True 
 B)False

Question 10

If you were designing a new operation for temporary relief of poorly oxygenated tissues in one part of the thorax,you could try to bypass blood from what vessel to that tissue?

Accepted Answer

A)   pulmonary vein
B)   superior vena cava
C)   pulmonary artery
D)   hepatic vein
E)   None of the answer choices are correct.

Question 11

The middle layer of the wall of an artery or vein is made up of

Accepted Answer

A)   valves.
B)   skeletal muscle.
C)   smooth muscle.
D)   endothelium.
E)   simple squamous epithelial cells.

Question 12

If you were shown a patient with a problem having water and dissolved substances diffuse between the blood and interstitial fluid,you should first examine the state of the patient's

Accepted Answer

A)   arteries.
B)   veins.
C)   lymph vessels.
D)   capillaries.
E)   sieve tubes.

Question 13

The widening of blood vessels is

Accepted Answer

A)   vasoconstriction.
B)   cardioconstriction.
C)   vasodilation.
D)   cardiodilation.

Question 14

The pulmonary vein transports deoxygenated blood from the lungs to the heart.

Accepted Answer

A) True 
 B)False

Question 15

Cardiac output depends on heart rate and stroke volume.

Accepted Answer

A) True 
 B)False

Question 16

Some people have been known to make money by selling blood plasma frequently,planning to do this as often as twice per week.Why is this frequency possible?

Accepted Answer

A)   Plasma only contains fluid and dissolved substances such as proteins that can be rapidly replaced.
B)   Plasma contains platelets which can be replaced quickly.
C)   Plasma contains red blood cells which can be replaced quickly.
D)   Plasma contains only water and can be rapidly replaced.
E)   Plasma is regenerated from the blood cells injected back into the donor.

Question 17

The simplest animals with a closed circulatory system are

Accepted Answer

A)   mollusks.
B)   amphibians.
C)   annelids.
D)   fish.
E)   reptiles.

Question 18

The narrowing of blood vessels is

Accepted Answer

A)   vasoconstriction.
B)   cardioconstriction.
C)   vasodilation.
D)   cardiodilation.

Question 19

The renal artery delivers blood to the pancreas.

Accepted Answer

A) True 
 B)False

Question 20

Blood has many functions in the human body.For example,it

Accepted Answer

A)   is a liquid connective tissue.
B)   delivers food to the cells of the body.
C)   delivers oxygen to the cells of the body.
D)   helps remove wastes from the body.
E)   All of the answer choices are correct.

Exam 30: The Circulatory System

The widening of blood vessels is

Correct AnswerverifiedShow Answer

Systolic pressure reflects the

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How do icefish transport oxygen in their blood for homeostatic purposes?

Correct AnswerverifiedShow Answer

Some people have been known to make money by selling blood plasma frequently,planning to do this as often as twice per week.Why is this frequency possible?

Correct AnswerverifiedShow Answer

The large vessels of the circulatory system that carry blood away from the heart are

Correct AnswerverifiedShow Answer

If you compared the blood pressure of an insect to that of a mammal,you would expect the pressure to be lower in the insect.

Correct AnswerverifiedShow Answer

The narrowing of blood vessels is

Correct AnswerverifiedShow Answer

The renal artery delivers blood to the pancreas.

Correct AnswerverifiedShow Answer

If you were shown a patient with a problem having water and dissolved substances diffuse between the blood and interstitial fluid,you should first examine the state of the patient's

Correct AnswerverifiedShow Answer

A clumping reaction caused by antibodies in the blood plasma is

Correct AnswerverifiedShow Answer

The pulmonary vein transports deoxygenated blood from the lungs to the heart.

Correct AnswerverifiedShow Answer

Blood has many functions in the human body.For example,it

Correct AnswerverifiedShow Answer

What mutations occurred in typical icefish that prevent production of hemoglobin?

Correct AnswerverifiedShow Answer

Capillary beds are networks of capillaries that connect arterioles and venules.

Correct AnswerverifiedShow Answer

Cardiac output depends on heart rate and stroke volume.

Correct AnswerverifiedShow Answer

The middle layer of the wall of an artery or vein is made up of

Correct AnswerverifiedShow Answer

The sinoatrial node,also called the pacemaker,sets the tempo of the heart beat.

Correct AnswerverifiedShow Answer

The upper chambers of the mammalian heart are the

Correct AnswerverifiedShow Answer

The simplest animals with a closed circulatory system are

Correct AnswerverifiedShow Answer

If you were designing a new operation for temporary relief of poorly oxygenated tissues in one part of the thorax,you could try to bypass blood from what vessel to that tissue?

Correct AnswerverifiedShow Answer

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