Question 1

How does heart rate affect blood pressure?

Accepted Answer

A)   Elevated heart rate decreases stroke volume, therefore raising blood pressure.
B)   Elevated heart rate increases cardiac output, therefore raising blood pressure.
C)   Elevated heart rate increases peripheral resistance, therefore raising blood pressure.
D)   Elevated heart rate increases blood viscosity, therefore raising blood pressure.E) B) and C)
F) A) and D)

Question 2

In an ECG pattern, what event is represented by the T wave?

Accepted Answer

A)   Repolarization of atrial muscle fibers
B)   Repolarization of ventricular muscle fibers
C)   Depolarization of atrial muscle fibers
D)   Depolarization of ventricular muscle fibersE) C) and D)
F) A) and B)

Question 3

The aorta is part ofthe __________ circuit.

Accepted Answer

The answer of The aorta is part ofthe __________ circuit....

Question 4

There is/are __________ brachiocephalic trunk(s)  and __________ brachiocephalic vein(s) .

Accepted Answer

A)   1; 2
B)   2; 1
C)   2; 2
D)   3; 2
E)   3; 3F) B) and E)
G) C) and D)

Question 5

Arteries are strong, elastic vessels that carry blood to the heart.

Accepted Answer

A) True 
 B)False

Question 6

When the left ventricle contracts, blood passes into the __________.

Accepted Answer

The answer of When the left ventricle contracts, blood passes...

Question 7

Contraction of the heart is called __________.

Accepted Answer

A)   systole
B)   diastoleC) A) and B)
D) undefined

Question 8

Normal heart rate is closest to which range?

Accepted Answer

A)   50- 55 beats per minute
B)   70- 75 beats per minute
C)   85 - 90 beats per minute
D)   95 - 100 beats per minuteE) A) and B)
F) A) and C)

Question 9

Blood is supplied to the myocardium by means of the __________ arteries.

Accepted Answer

The answer of Blood is supplied to the myocardium by...

Question 10

What effect does an excess of potassium have on the heart?

Accepted Answer

A)   Decreases heart rate and increases force of contractions
B)   Decreases heart rate and decreases force of contractions
C)   Increases heart rate and decreases force of contractions
D)   Increases heart rate and increases force of contractionsE) A) and B)
F) A) and C)

Question 11

During long flights, it is recommended that you move your foot up and down periodically, forcing contractions of the muscles in the calf. How would this help with circulation?

Accepted Answer

A)   Contraction of the muscles increases heart rate and burns calories, keeping the heart strong and assisting in maintaining healthy weight.
B)   Contraction of muscles stimulates the arteries to vasodilate, reducing blood pressure.
C)   Contraction of the leg muscles stimulates baroreceptors to signal the autonomic nervous system to decrease blood pressure and heart rate from
D)   Contraction of the leg muscles squeezes leg veins, which function as a pumping mechanism to return deoxygenated blood to the heart.E) C) and D)
F) All of the above

Question 12

The top of the heart is called the base, and the pointed bottom of the heart is called the apex.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following represents the correct sequence of structures through which blood moves from the venae cavae to the lungs?

Accepted Answer

A)   Right atrium, pulmonary valve, right ventricle, tricuspid valve
B)   Right atrium, tricuspid valve, right ventricle, pulmonary valve
C)   Tricuspid valve, right atrium, pulmonary valve, right ventricle
D)   Pulmonary valve, right atrium, tricuspid valve, right ventricle
E)   Right ventricle, tricuspid valve, right atrium, pulmonary valveF) A) and C)
G) C) and D)

Question 14

The painful condition known as angina pectoris comes from a blockage in an artery that supplies what region?

Accepted Answer

A)   Left arm and shoulder
B)   Neck and jaw
C)   Heart
D)   Sternum
E)   Right hip and thighF) D) and E)
G) C) and E)

Question 15

The alternating systolic and diastolic blood pressure can be palpated and is known as __________.

Accepted Answer

A)   pulse
B)   hypertension
C)   cardiac output
D)   mean arterial pressureE) All of the above
F) A) and B)

Question 16

The cardiac conduction system is composed of a network of nerve fibers beginning with the sinoatrial (SA) node.

Accepted Answer

A) True 
 B)False

Question 17

The __________ circuit sends oxygen-rich blood from the heart to all cells of the body, removes carbon dioxide and other wastes, and returns blood to the heart.

Accepted Answer

A)   cardiovascular
B)   visceral
C)   pulmonary
D)   systemicE) A) and B)
F) A) and C)

Question 18

Which of the following is not a risk factor for atherosclerosis?

Accepted Answer

A)   Diet high in carbohydrates
B)   High blood pressure
C)   Lack of physical exercise
D)   Obesity
E)   Tobacco smokingF) A) and B)
G) A) and C)

Question 19

Closure of the heart's four valves create the lubb-duppsounds of a heartbeat.

Accepted Answer

A) True 
 B)False

Question 20

What artery has branches called the gastric, hepatic, and splenic arteries?

Accepted Answer

A)   Celiac trunk
B)   Brachiocephalic trunk
C)   Inferior vena cava
D)   Inferior mesenteric artery
E)   Superior mesenteric arteryF) A) and C)
G) All of the above

Exam 13: Cardiovascular System

What artery has branches called the gastric, hepatic, and splenic arteries?

Correct AnswerverifiedShow Answer

The aorta is part ofthe __________ circuit.

Correct AnswerverifiedShow Answer

Normal heart rate is closest to which range?

Correct AnswerverifiedShow Answer

The cardiac conduction system is composed of a network of nerve fibers beginning with the sinoatrial (SA) node.

Correct AnswerverifiedShow Answer

Arteries are strong, elastic vessels that carry blood to the heart.

Correct AnswerverifiedShow Answer

During long flights, it is recommended that you move your foot up and down periodically, forcing contractions of the muscles in the calf. How would this help with circulation?

Correct AnswerverifiedShow Answer

Blood is supplied to the myocardium by means of the __________ arteries.

Correct AnswerverifiedShow Answer

What effect does an excess of potassium have on the heart?

Correct AnswerverifiedShow Answer

Which of the following represents the correct sequence of structures through which blood moves from the venae cavae to the lungs?

Correct AnswerverifiedShow Answer

How does heart rate affect blood pressure?

Correct AnswerverifiedShow Answer

Contraction of the heart is called __________.

Correct AnswerverifiedShow Answer

Closure of the heart's four valves create the lubb-duppsounds of a heartbeat.

Correct AnswerverifiedShow Answer

The __________ circuit sends oxygen-rich blood from the heart to all cells of the body, removes carbon dioxide and other wastes, and returns blood to the heart.

Correct AnswerverifiedShow Answer

Which of the following is not a risk factor for atherosclerosis?

Correct AnswerverifiedShow Answer

The alternating systolic and diastolic blood pressure can be palpated and is known as __________.

Correct AnswerverifiedShow Answer

There is/are __________ brachiocephalic trunk(s) and __________ brachiocephalic vein(s) .

Correct AnswerverifiedShow Answer

When the left ventricle contracts, blood passes into the __________.

Correct AnswerverifiedShow Answer

In an ECG pattern, what event is represented by the T wave?

Correct AnswerverifiedShow Answer

The top of the heart is called the base, and the pointed bottom of the heart is called the apex.

Correct AnswerverifiedShow Answer

The painful condition known as angina pectoris comes from a blockage in an artery that supplies what region?

Correct AnswerverifiedShow Answer

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There is/are brachiocephalic trunk(s) and brachiocephalic vein(s) .

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