Question 1

The cardiovascular system consists of all of the following except

Accepted Answer

A)   the heart.
B)   arteries.
C)   veins.
D)   lungs.
E)   capillaries.

Question 2

The pulmonary circuit

Accepted Answer

A)   sends oxygen-poor blood to the heart.
B)   brings oxygen-poor blood from the tissues.
C)   sends oxygen-poor blood to the lungs.
D)   brings oxygen-rich blood to the tissues.
E)   does none of the above.

Question 3

Atrial repolarization produces the T waves seen in ECG tracings.

Accepted Answer

A) True 
 B)False

Question 4

When the ventricular walls contract,the

Accepted Answer

A)   bicuspid valve opens and the tricuspid valve closes.
B)   tricuspid valve opens and the bicuspid valve closes.
C)   bicuspid and tricuspid valves close.
D)   bicuspid and tricuspid valves open.
E)   semilunar valves close.

Question 5

Blood flow that travels from the heart to the lungs for gas exchange and then back to the heart describes the ___________ circuit.

Accepted Answer

A)   cardiovascular
B)   parietal
C)   pulmonary
D)   systemic

Question 6

In an electrocardiogram (ECG) pattern,the P-Q interval indicates how long it takes for the cardiac impulse to travel from the

Accepted Answer

A)   sinoatrial (S
A)  node to the atrial muscle fibers.
B)   sinoatrial (S
A)  node through the atrioventricular (AV) node.
C)   atrioventricular (AV) node to the atrial muscle fibers.
D)   atrioventricular (AV) node to the ventricular muscle fibers.
E)   sinoatrial (S
A)  node to the ventricular muscle fibers.

Question 7

The pain of angina pectoris comes from a blockage in an artery that supplies the

Accepted Answer

A)   left arm and shoulder.
B)   neck and jaw.
C)   heart.
D)   sternum.
E)   legs.

Question 8

Blood from the face and scalp is drained by the

Accepted Answer

A)   external jugular vein.
B)   subclavian vein.
C)   inferior vena cava.
D)   cephalic vein.
E)   superior vena cava.

Question 9

Which of the following structures does NOT require stimulation from nerve fibers or other agents?

Accepted Answer

A)   chordae tendineae
B)   papillary muscles
C)   sinoatrial node
D)   atrial syncytium
E)   AV bundle

Question 10

What chamber of the heart pumps blood to the left lung?

Accepted Answer

A)   left ventricle
B)   right ventricle
C)   left atrium
D)   right atrium

Question 11

The effect on the heart of excess potassium ion concentration usually is

Accepted Answer

A)   increased heart rate and increased force of contraction.
B)   decreased heart rate and increased force of contraction.
C)   decreased heart rate and decreased force of contraction.
D)   increased heart rate and decreased force of contraction.
E)   cessation of the heart.

Question 12

What part of the conduction system fibers extend into the papillary muscles?

Accepted Answer

A)   SA node
B)   AV node
C)   bundle branches
D)   Purkinje fibers

Question 13

The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are ________.

Accepted Answer

The answer of The blood vessels whose walls are thin...

Question 14

The __________ drains blood from the wall of the heart into the right atrium.

Accepted Answer

The answer of The __________ drains blood from the wall...

Question 15

Sympathetic branches of the autonomic nervous system stimulate smooth muscle in artery and arteriole walls to

Accepted Answer

A)   expand.
B)   relax.
C)   contract.
D)   dilate.
E)   lengthen.

Question 16

How does heart rate affect blood pressure?

Accepted Answer

A)   Elevated heart rate increases stroke volume.
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 does all these things.

Question 17

Which of the following is NOT a branch of the aorta?

Accepted Answer

A)   right coronary artery
B)   pulmonary artery
C)   brachiocephalic artery
D)   left subclavian artery
E)   celiac artery

Question 18

Osmotic capillary pressure forces fluid out into the tissues.

Accepted Answer

A) True 
 B)False

Question 19

What region of the body receives its blood supply from the vertebral arteries?

Accepted Answer

A)   the thoracic region
B)   the cranial region
C)   the antebrachial region
D)   the pelvic region

Question 20

The cardiac control center is found in this part of the brain.

Accepted Answer

A)   medulla oblongata
B)   cerebellum
C)   pons
D)   thalamus
E)   hypothalamus

Exam 13: Cardiovascular System

Blood from the face and scalp is drained by the

Correct AnswerverifiedShow Answer

In an electrocardiogram (ECG) pattern,the P-Q interval indicates how long it takes for the cardiac impulse to travel from the

Correct AnswerverifiedShow Answer

Atrial repolarization produces the T waves seen in ECG tracings.

Correct AnswerverifiedShow Answer

Which of the following is NOT a branch of the aorta?

Correct AnswerverifiedShow Answer

The pulmonary circuit

Correct AnswerverifiedShow Answer

The cardiac control center is found in this part of the brain.

Correct AnswerverifiedShow Answer

Which of the following structures does NOT require stimulation from nerve fibers or other agents?

Correct AnswerverifiedShow Answer

The __________ drains blood from the wall of the heart into the right atrium.

Correct AnswerverifiedShow Answer

Blood flow that travels from the heart to the lungs for gas exchange and then back to the heart describes the ___________ circuit.

Correct AnswerverifiedShow Answer

The blood vessels whose walls are thin enough to allow exchange of gases between the blood and tissue fluid are ________.

Correct AnswerverifiedShow Answer

Osmotic capillary pressure forces fluid out into the tissues.

Correct AnswerverifiedShow Answer

When the ventricular walls contract,the

Correct AnswerverifiedShow Answer

How does heart rate affect blood pressure?

Correct AnswerverifiedShow Answer

Sympathetic branches of the autonomic nervous system stimulate smooth muscle in artery and arteriole walls to

Correct AnswerverifiedShow Answer

What region of the body receives its blood supply from the vertebral arteries?

Correct AnswerverifiedShow Answer

The pain of angina pectoris comes from a blockage in an artery that supplies the

Correct AnswerverifiedShow Answer

What chamber of the heart pumps blood to the left lung?

Correct AnswerverifiedShow Answer

The cardiovascular system consists of all of the following except

Correct AnswerverifiedShow Answer

What part of the conduction system fibers extend into the papillary muscles?

Correct AnswerverifiedShow Answer

The effect on the heart of excess potassium ion concentration usually is

Correct AnswerverifiedShow Answer

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