Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

Which of the following correctly traces the path of blood from the heart to the kidneys and back to the heart again?

Accepted Answer

A)   left ventricle  →\rarr→  vena cava  →\rarr→  renal vein  →\rarr→ kidney  →\rarr→ renal artery  →\rarr→  aorta  →\rarr→  right atrium
B)   right atrium  →\rarr→  aorta  →\rarr→  renal artery  →\rarr→  kidney  →\rarr→ renal vein  →\rarr→ hepatic portal vein  →\rarr→  vena cava  →\rarr→  left atrium
C)   left ventricle  →\rarr→  renal artery  →\rarr→ kidney  →\rarr→ renal vein  →\rarr→  vena cava  →\rarr→  right atrium
D)   left ventricle  →\rarr→  aorta  →\rarr→ renal artery  →\rarr→  kidney  →\rarr→  renal vein  →\rarr→  vena cava  →\rarr→ right atrium
E)   right ventricle  →\rarr→  aorta  →\rarr→ renal artery  →\rarr→  kidney →\rarr→ renal vein  →\rarr→  vena cava  →\rarr→ hepatic portal vein  →\rarr→  right atrium F) A) and E)
G) A) and D)

Question 3

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) D) and E)
G) A) and C)

Question 4

Which phase of the ECG indicates ventricular excitation and contraction?

Accepted Answer

A)   P wave
B)   QRS wave
C)   T wave
D)   U wave
E)   I waveF) A) and C)
G) B) and D)

Question 5

Hyptertension is sometimes called the silent killer because no symptoms may be experienced until a stroke or heart attack occurs.

Accepted Answer

A) True 
 B)False

Question 6

Why is it advantageous to have blood move slowly in the capillaries?

Accepted Answer

A)   It will not cause damage to the valves.
B)   It maintains the high pressure in the capillaries.
C)   It provides time for substances to be exchanged between blood and tissue fluids.
D)   It creates a greater osmotic pressure for cells.
E)   It is the major way to control blood pressure.F) B) and E)
G) A) and B)

Question 7

Which of the following is NOT a correct association?

Accepted Answer

A)   arteries-blood away from heart
B)   ventricles-receive blood from body
C)   valves-veins
D)   right heart-lungs
E)   valves-capillary bedsF) None of the above
G) A) and E)

Question 8

Intrinsic control of heartbeat rate involves what mechanism(s) ?

Accepted Answer

A)   The AV node initiates heartbeat although the SA node can generate a slower beat rate.
B)   The atrioventricular bundle initiates signals that travel to the Purkinje fibers.
C)   The Purkinje fibers initiates signals that travel to the atrioventricular bundle.
D)   The SA node initiates heartbeat and the AV node inhibits the heartbeat.
E)   The SA node initiates heartbeat although the AV node can generate a slower beat rate.F) A) and B)
G) B) and C)

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Early doctors did not understand that blood flowed in a circuit but assumed that blood ebbed and flowed like a tide inside the body.William Harvey was the first to demonstrate the circulation of blood and convince the medical community.Which of the following observations would NOT be evidence that blood was pumped through the body or flowed in a circuit?

Accepted Answer

A)   Dissecting a live fish shows the heart beating and blood moving, gushing one direction.
B)   A very tight tourniquet causes the arteries to swell on the side toward the heart, but not on the side of the ligature away from the heart.
C)   Measuring the volume of the heart and counting the beats per minute gives a value of 520 pounds of blood an hour, many times a person's volume.
D)   In surface veins, blood can be pressed past a valve toward the heart but not away from the heart.
E)   A cut made anywhere on the body results in blood seeping from the wound.F) A) and D)
G) A) and E)

Question 11

Venous return does not depend on

Accepted Answer

A)   respiratory movements.
B)   skeletal muscle contractions.
C)   the presence of valves.
D)   limb movement.
E)   blood pressure.F) B) and E)
G) None of the above

Question 12

Which of the following variables does not increase an individuals likelihood of developing a cardiovascular disease?

Accepted Answer

A)   gender
B)   family history of heart attack under 55 years of age
C)   smoking
D)   hypertension
E)   type 2 diabetesF) B) and E)
G) All of the above

Question 13

Higher than normal blood pressure is called

Accepted Answer

A)   atherosclerosis.
B)   coronary heart disease.
C)   hypertension.
D)   heart murmurs.
E)   an embolism.F) A) and C)
G) A) and E)

Question 14

There is a condition where a baby is born with an opening [foramen ovale] in the septum or wall between the atria.What are reasonable consequences?

Accepted Answer

A)   more efficient pumping of blood through the body with pressure from both ventricles
B)   an equal reading for blood pressure, that is diastole equals systole
C)   disability when deoxygenated blood is mixed and sent to the body and partly oxygenated blood is sent to the lungs
D)   death due to loss of blood from the circulatory system
E)   no significant differences would occurF) A) and D)
G) C) and D)

Question 15

Blood flow in the capillaries is

Accepted Answer

A)   slower because there are more capillaries and they represent more flow volume.
B)   faster because they are smaller and blood must speed up to get through.
C)   the same speed as in the arteries and veins since they are the input and output points.
D)   highly variable due to different tissues, but must average the same as speeds in arteries and the veins.
E)   slower than in other blood vessels because of the presence of valves.F) A) and D)
G) A) and C)

Question 16

Which statement is NOT true about neutrophils?

Accepted Answer

A)   They are phagocytic.
B)   They have a multilobed nucleus.
C)   They are agranular leukocytes.
D)   They do not produce antibodies.
E)   They are the most abundant white blood cell.F) C) and D)
G) A) and E)

Question 17

When the paramedic shouts "stand back" and applies the paddles to administer a strong current,this is an attempt to

Accepted Answer

A)   restart ventricular contractions that have completely stopped.
B)   reverse control of heartbeat from AV to SA nodes.
C)   align the P-QRS waves with the electrical paddle waves.
D)   stop the ventricles from uncontrolled contractions so the SA node can reestablish a coordinated beat.
E)   destroy heart tissue that is out of control.F) A) and C)
G) A) and D)

Question 18

Capillaries exchange oxygen and nutrients for wastes in the tissues.

Accepted Answer

A) True 
 B)False

Question 19

A heart murmur that sounded "lub-dup-shush" would indicate which of the following?

Accepted Answer

A)   atrioventricular valve is not closing properly
B)   semilunar valve is not closing properly
C)   high blood pressure in the atria
D)   ventricles are not contracting properly
E)   low blood pressure in the ventriclesF) A) and D)
G) B) and D)

Question 20

Which blood pressure is considered abnormally high for individuals who are under the age of 45?

Accepted Answer

A)   130/90 mm Hg
B)   90/130 mm Hg
C)   110/95 mm Hg
D)   95/140 mm Hg
E)   120/90 mm HgF) A) and C)
G) B) and E)

Exam 12: Cardiovascular System

Intrinsic control of heartbeat rate involves what mechanism(s) ?

Correct Answer
verified

There is a condition where a baby is born with an opening [foramen ovale] in the septum or wall between the atria.What are reasonable consequences?

Correct Answer
verified

Which statement is NOT true about neutrophils?

Correct Answer
verified

Why is it advantageous to have blood move slowly in the capillaries?

Correct Answer
verified

Venous return does not depend on

Correct Answer
verified

Which phase of the ECG indicates ventricular excitation and contraction?

Correct Answer
verified

Hyptertension is sometimes called the silent killer because no symptoms may be experienced until a stroke or heart attack occurs.

Correct Answer
verified

Which of the following correctly traces the path of blood from the heart to the kidneys and back to the heart again?

Correct Answer
verified

Capillaries exchange oxygen and nutrients for wastes in the tissues.

Correct Answer
verified

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

Correct Answer
verified

Which of the following variables does not increase an individuals likelihood of developing a cardiovascular disease?

Correct Answer
verified

Correct Answer
verified

Blood flow in the capillaries is

Correct Answer
verified

Higher than normal blood pressure is called

Correct Answer
verified

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

Correct Answer
verified

Which blood pressure is considered abnormally high for individuals who are under the age of 45?

Correct Answer
verified

Which of the following is NOT a correct association?

Correct Answer
verified

Which of the following is true about capillaries?

Correct Answer
verified

When the paramedic shouts "stand back" and applies the paddles to administer a strong current,this is an attempt to

Correct Answer
verified

A heart murmur that sounded "lub-dup-shush" would indicate which of the following?

Correct Answer
verified

Exam 12: Cardiovascular System

Intrinsic control of heartbeat rate involves what mechanism(s) ?

Correct AnswerverifiedShow Answer

There is a condition where a baby is born with an opening [foramen ovale] in the septum or wall between the atria.What are reasonable consequences?

Correct AnswerverifiedShow Answer

Which statement is NOT true about neutrophils?

Correct AnswerverifiedShow Answer

Why is it advantageous to have blood move slowly in the capillaries?

Correct AnswerverifiedShow Answer

Venous return does not depend on

Correct AnswerverifiedShow Answer

Which phase of the ECG indicates ventricular excitation and contraction?

Correct AnswerverifiedShow Answer

Hyptertension is sometimes called the silent killer because no symptoms may be experienced until a stroke or heart attack occurs.

Correct AnswerverifiedShow Answer

Which of the following correctly traces the path of blood from the heart to the kidneys and back to the heart again?

Correct AnswerverifiedShow Answer

Capillaries exchange oxygen and nutrients for wastes in the tissues.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following variables does not increase an individuals likelihood of developing a cardiovascular disease?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Blood flow in the capillaries is

Correct AnswerverifiedShow Answer

Higher than normal blood pressure is called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which blood pressure is considered abnormally high for individuals who are under the age of 45?

Correct AnswerverifiedShow Answer

Which of the following is NOT a correct association?

Correct AnswerverifiedShow Answer

Which of the following is true about capillaries?

Correct AnswerverifiedShow Answer

When the paramedic shouts "stand back" and applies the paddles to administer a strong current,this is an attempt to

Correct AnswerverifiedShow Answer

A heart murmur that sounded "lub-dup-shush" would indicate which of the following?

Correct AnswerverifiedShow Answer

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