Question 1

Which of the following is true about capillaries?

Accepted Answer

A)  Capillaries are extremely narrow.
B)  Capillaries join arteries to arterioles.
C)  Capillaries walls have three layers.
D)  Capillaries are present in only a limited number of internal organs.
E)  Capillaries work individually to carry out their function.F) A) and D)
G) B) and E)

Question 2

The outer sac that encloses the heart and provides lubrication is the

Accepted Answer

A)  myocardium.
B)  endocardium.
C)  ectocardium.
D)  pericardium.
E)  coronary capsule.F) B) and C)
G) All of the above

Question 3

Oxygenated blood enters the heart at the

Accepted Answer

A)  left atrium.
B)  left ventricle.
C)  right atrium.
D)  right ventricle.
E)  pulmonary arteries.F) C) and D)
G) B) and E)

Question 4

The "lub" heart sound is due to the

Accepted Answer

A)  onward rush of blood to the heart.
B)  contraction of aortic muscle tissue.
C)  closing of the semilunar valves.
D)  closing of the atrioventricular valves.
E)  the recoil of the aorta following the ventricle contraction.F) All of the above
G) A) and C)

Question 5

The major portion of the heart is the myocardium,made up mainly of cardiac muscle.

Accepted Answer

A) True 
 B)False

Question 6

Accumulation of cholesterol beneath the inner linings of arteries is called

Accepted Answer

A)  hypertension.
B)  heart attack.
C)  stroke.
D)  atherosclerosis.
E)  thrombus.F) None of the above
G) B) and D)

Question 7

Neutrophils and lymphocytes are types of

Accepted Answer

A)  platelets.
B)  red blood cells.
C)  white blood cells.
D)  plasma cells.
E)  epithelial cells.F) A) and D)
G) A) and B)

Question 8

Stem cells

Accepted Answer

A)  are formed from the formed elements in the blood.
B)  are found only in bone marrow.
C)  are found only in embryos.
D)  can differentiate into many cell types,including neurons.
E)  will remain as stem cells no matter how many cell divisions take place.F) B) and E)
G) A) and B)

Question 9

List the path a drop of blood would go through,starting with entry into and eventually leaving the heart to go to the entire body.

Accepted Answer

Blood enters the heart through the super...

Question 10

Which is NOT a correct association describing aspects of the cardiac cycle?

Accepted Answer

A)  Each heartbeat constitutes a cardiac cycle.
B)  Diastole is contraction of the heart and systole is relaxation.
C)  A normal heart rate varies from 60 to 80 beats per minute.
D)  A pulse is the expansion and recoil of artery walls felt near the body surface.
E)  Valves prevent backflow of blood into the heart when the heart relaxes.F) C) and D)
G) B) and D)

Question 11

In the fetal heart,the lungs are deflated and the fetus receives oxygen from its mother across the placenta through the umbilical cord.There is an opening in the wall between the left and right side of the fetal heart.Normally,this closes before birth.What symptoms would be expected if this heart wall opening remained open?

Accepted Answer

A)  It would cause hypertension; fetal blood pressure would be abnormally high.
B)  This would balance the diastolic and systolic blood pressure readings.
C)  Deoxygenated blood would mix with oxygenated blood and systemic circulation would have too little oxygen to sustain healthy growth.
D)  This would not actually cause any bad effects at all since the heart pumping would be equally distributed between left and right ventricles.
E)  This would cause blood to flow back out of the heart through the right atrium and cause drastic effects in the fetus.F) C) and D)
G) B) and D)

Question 12

In the tissues,oxygen and nutrients enter the capillaries and carbon dioxide and wastes leave the capillaries.

Accepted Answer

A) True 
 B)False

Question 13

Compare the differences between the walls of arteries and veins.

Accepted Answer

Both arterial and venous walls are compo...

Question 14

Which of the following proteins is found in abundance within red blood cells?

Accepted Answer

A)  albumin
B)  hemoglobin
C)  globulin
D)  fibrinogen
E)  myoglobinF) A) and E)
G) C) and E) B

Question 15

Which blood vessels will have walls only one cell thick?

Accepted Answer

A)  capillaries
B)  venules
C)  veins
D)  arterioles
E)  arteriesF) A) and D)
G) B) and E) A

Question 16

Before major surgery,a patient is often asked if they have been taking large amounts of aspirin,and if so,they may have to postpone surgery and go without aspirin for some days.What is the reason for this?

Accepted Answer

A)  Aspirin interferes with the action of prothrombin activator.
B)  Aspirin causes the blood to be thinner or less viscous.
C)  Aspirin decreases red blood cell production.
D)  Aspirin reduces the stickiness of platelets and reduces the ability to clot.
E)  Aspirin eliminates pain and some pain is necessary for healing.F) C) and D)
G) D) and E)

Question 17

If you are tracing the path of blood from the right to the left side of the heart,you must mention the

Accepted Answer

A)  lungs.
B)  hepatic portal vein.
C)  aorta.
D)  superior vena cava.
E)  inferior vena cava.F) B) and D)
G) A) and D)

Question 18

Sphincter muscles regulate the opening and closing of arterioles leading to capillary beds,directing the flow of blood to different areas of the body depending on the body's needs.

Accepted Answer

A) True 
 B)False

Question 19

Which blood vessel has the highest concentration of carbon dioxide?

Accepted Answer

A)  pulmonary artery
B)  pulmonary vein
C)  aorta
D)  renal vein
E)  hepatic portal veinF) A) and B)
G) A) and C) A

Question 20

It may be possible to "fix" a coronary blockage by gene therapy.

Accepted Answer

A) True 
 B)False

Exam 12: Cardiovascular System

Which of the following is true about capillaries?

Correct Answer
verified

The outer sac that encloses the heart and provides lubrication is the

Correct Answer
verified

Oxygenated blood enters the heart at the

Correct Answer
verified

The "lub" heart sound is due to the

Correct Answer
verified

The major portion of the heart is the myocardium,made up mainly of cardiac muscle.

Correct Answer
verified

Accumulation of cholesterol beneath the inner linings of arteries is called

Correct Answer
verified

Neutrophils and lymphocytes are types of

Correct Answer
verified

Stem cells

Correct Answer
verified

List the path a drop of blood would go through,starting with entry into and eventually leaving the heart to go to the entire body.

Correct Answer
verified
Blood enters the heart through the super...
View Answer

Which is NOT a correct association describing aspects of the cardiac cycle?

Correct Answer
verified

Correct Answer
verified

In the tissues,oxygen and nutrients enter the capillaries and carbon dioxide and wastes leave the capillaries.

Correct Answer
verified

Compare the differences between the walls of arteries and veins.

Correct Answer
verified
Both arterial and venous walls are compo...
View Answer

Which of the following proteins is found in abundance within red blood cells?

Correct Answer
verified
B

Which blood vessels will have walls only one cell thick?

Correct Answer
verified
A

Before major surgery,a patient is often asked if they have been taking large amounts of aspirin,and if so,they may have to postpone surgery and go without aspirin for some days.What is the reason for this?

Correct Answer
verified

If you are tracing the path of blood from the right to the left side of the heart,you must mention the

Correct Answer
verified

Sphincter muscles regulate the opening and closing of arterioles leading to capillary beds,directing the flow of blood to different areas of the body depending on the body's needs.

Correct Answer
verified

Which blood vessel has the highest concentration of carbon dioxide?

Correct Answer
verified
A

It may be possible to "fix" a coronary blockage by gene therapy.

Correct Answer
verified

Exam 12: Cardiovascular System

Which of the following is true about capillaries?

Correct AnswerverifiedShow Answer

The outer sac that encloses the heart and provides lubrication is the

Correct AnswerverifiedShow Answer

Oxygenated blood enters the heart at the

Correct AnswerverifiedShow Answer

The "lub" heart sound is due to the

Correct AnswerverifiedShow Answer

The major portion of the heart is the myocardium,made up mainly of cardiac muscle.

Correct AnswerverifiedShow Answer

Accumulation of cholesterol beneath the inner linings of arteries is called

Correct AnswerverifiedShow Answer

Neutrophils and lymphocytes are types of

Correct AnswerverifiedShow Answer

Stem cells

Correct AnswerverifiedShow Answer

List the path a drop of blood would go through,starting with entry into and eventually leaving the heart to go to the entire body.

Correct AnswerverifiedBlood enters the heart through the super...View AnswerShow Answer

Which is NOT a correct association describing aspects of the cardiac cycle?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In the tissues,oxygen and nutrients enter the capillaries and carbon dioxide and wastes leave the capillaries.

Correct AnswerverifiedShow Answer

Compare the differences between the walls of arteries and veins.

Correct AnswerverifiedBoth arterial and venous walls are compo...View AnswerShow Answer

Which of the following proteins is found in abundance within red blood cells?

Correct AnswerverifiedB

Which blood vessels will have walls only one cell thick?

Correct AnswerverifiedA

Before major surgery,a patient is often asked if they have been taking large amounts of aspirin,and if so,they may have to postpone surgery and go without aspirin for some days.What is the reason for this?

Correct AnswerverifiedShow Answer

If you are tracing the path of blood from the right to the left side of the heart,you must mention the

Correct AnswerverifiedShow Answer

Sphincter muscles regulate the opening and closing of arterioles leading to capillary beds,directing the flow of blood to different areas of the body depending on the body's needs.

Correct AnswerverifiedShow Answer

Which blood vessel has the highest concentration of carbon dioxide?

Correct AnswerverifiedA

It may be possible to "fix" a coronary blockage by gene therapy.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Blood enters the heart through the super...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Both arterial and venous walls are compo...
View Answer

Correct Answer
verified
B

Correct Answer
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A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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A

Correct Answer
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