Question 1

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

Accepted Answer

A)   no effect
B)   increases heart action
C)   decreases heart action
D)   decreases heart rate but prolongs contractionsE) A) and B)
F) A) and C)

Question 2

An abnormally slow heart rate is termed

Accepted Answer

A)   tachycardia.
B)   bradycardia.
C)   fibrillation.
D)   cardioversion.
E)   pericardia.F) B) and D)
G) C) and D)

Question 3

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 4

In normal circulation blood flow usually follows this pattern of vessels.

Accepted Answer

A)   artery,arteriole,capillary,venule,vein
B)   artery,vein,capillary,venule,arteriole
C)   artery,capillary,vein,arteriole,venule
D)   none of theseE) None of the above
F) A) and C)

Question 5

What is the longest vein in the body?

Accepted Answer

A)   inferior vena cava
B)   great cardiac vein
C)   cephalic vein
D)   great saphenous vein
E)   femoral veinF) A) and B)
G) A) and E)

Question 6

The sinoatrial (SA)node relays nerve impulses into the AV bundle of the interventricular septum,and the atrioventricular (AV)node is responsible for the rhythmic contractions of the heart.

Accepted Answer

A) True 
 B)False

Question 7

What is the complete set of contraction and relaxation events that constitutes one heartbeat called?

Accepted Answer

A)   systole
B)   stroke volume
C)   cardiac cycle
D)   diastoleE) None of the above
F) A) and C)

Question 8

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

Accepted Answer

A)   decreases heart rate
B)   decreases force of contractions
C)   increases heart rate
D)   both a and b
E)   none of theseF) A) and B)
G) A) and C)

Question 9

Venules continue from capillaries to form veins,which carry blood back to the atria.

Accepted Answer

A) True 
 B)False

Question 10

Blood that passes into the right ventricle has passed through this valve.

Accepted Answer

A)   mitral
B)   tricuspid
C)   pulmonary
D)   aorticE) B) and C)
F) A) and D)

Question 11

The descending aorta divides near the brim of the pelvis to form the right and left ________.

Accepted Answer

common ili...

Question 12

What is the pacemaker of the heart?

Accepted Answer

A)   sinoatrial (S
A)  node
B)   the autonomic nervous system
C)   atrioventricular (AV) node
D)   Purkinje fibersE) All of the above
F) B) and D)

Question 13

The blood vessel that supplies blood to the coronary arteries is _________.

Accepted Answer

A)   the aorta
B)   the superior vena cava
C)   the coronary sinus
D)   the left pulmonary artery
E)   the left pulmonary veinF) A) and C)
G) None of the above

Question 14

The ___________ is the potential space between the parietal and visceral pericardial membranes.

Accepted Answer

The answer of The ___________ is the potential space between...

Question 15

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

Accepted Answer

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

Question 16

This layer of a blood vessel wall is composed of simple squamous epithelium.

Accepted Answer

A)   epithelium
B)   tunica interna
C)   tunica media
D)   tunica externa
E)   smooth muscleF) A) and C)
G) A) and E)

Question 17

The aorta is part of the ________ circuit.

Accepted Answer

The answer of The aorta is part of the ________...

Question 18

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,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 D)
G) B) and E)

Question 19

Which of the events below would increase the pressure of blood against the blood vessel walls? Choose all that apply.
an increase in peripheral resistance
__
a decrease in blood viscosity
an increase in stroke volume
vasoconstriction

Accepted Answer

The answer of Which of the events below would increase...

Question 20

Capillary exchange of gases,nutrients and waste is accomplished by diffusion,osmosis and filtration.

Accepted Answer

A) True 
 B)False

Exam 13: Cardiovascular System

This layer of a blood vessel wall is composed of simple squamous epithelium.

Correct AnswerverifiedShow Answer

Venules continue from capillaries to form veins,which carry blood back to the atria.

Correct AnswerverifiedShow Answer

What is the complete set of contraction and relaxation events that constitutes one heartbeat called?

Correct AnswerverifiedShow Answer

The aorta is part of the ________ circuit.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the longest vein in the body?

Correct AnswerverifiedShow Answer

An abnormally slow heart rate is termed

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

In normal circulation blood flow usually follows this pattern of vessels.

Correct AnswerverifiedShow Answer

Blood that passes into the right ventricle has passed through this valve.

Correct AnswerverifiedShow Answer

Capillary exchange of gases,nutrients and waste is accomplished by diffusion,osmosis and filtration.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The sinoatrial (SA)node relays nerve impulses into the AV bundle of the interventricular septum,and the atrioventricular (AV)node is responsible for the rhythmic contractions of the heart.

Correct AnswerverifiedShow Answer

Which of the events below would increase the pressure of blood against the blood vessel walls? Choose all that apply. an increase in peripheral resistance __ a decrease in blood viscosity an increase in stroke volume vasoconstriction

Correct AnswerverifiedShow Answer

The descending aorta divides near the brim of the pelvis to form the right and left ________.

Correct Answerverifiedcommon ili...View AnswerShow Answer

The ___________ is the potential space between the parietal and visceral pericardial membranes.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The blood vessel that supplies blood to the coronary arteries is _________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the pacemaker of the heart?

Correct AnswerverifiedShow Answer

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common ili...
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