Question 1

The heart chamber with the thickest wall is the

Accepted Answer

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

Question 2

The are subdivisions of the atrioventricular bundle located within the upper half of the interventricular septum.

Accepted Answer

bundle bra...

Question 3

Parasympathetic impulses to the SA node are transmitted on this cranial nerve.

Accepted Answer

A)   Vagus nerve
B)   Hypoglossal nerve
C)   Accessory nerve-spinal part
D)   Glossopharyngeal nerve
E)   Trigeminal nerveF) A) and D)
G) A) and C) A

Question 4

The valve prevents backflow of blood from the left ventricle to the left atrium.

Accepted Answer

mitral, le...

Question 5

Prolapse of the atrioventricular valves is prevented by the chordae tendineae.

Accepted Answer

A) True 
 B)False

Question 6

Sounds of the aortic valve are heard in the second intercostal space at the right sternal margin.

Accepted Answer

A) True 
 B)False  True

Question 7

Irregular ridges in the walls of the ventricles are called .

Accepted Answer

The answer of Irregular ridges in the walls of the...

Question 8

The desmosome-like structures that attach adjacent cardiac muscle cells are called

Accepted Answer

A)   gap junctions.
B)   intercalated disks.
C)   T tubules.
D)   fasciae adherens.E) B) and C)
F) B) and D)

Question 9

During left ventricular systole, blood exits the heart to enter the

Accepted Answer

A)   pulmonary trunk.
B)   venae cavae.
C)   pulmonary vein.
D)   aorta.E) A) and B)
F) A) and C)

Question 10

Figure 19.2
Use the diagram above to answer the following questions.
-Identify the letter that indicates anchor points for chordae tendineae, composed of cells from the myocardium.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) C) and D)
G) None of the above

Question 11

How did the sinoatrial (SA)  node most likely get its name?

Accepted Answer

A)   It is damaged by sinus infections (head colds) .
B)   It develops from the sinus venosus and lies in an atrium.
C)   It is on the side of the atrium.
D)   It lies at the opening of the coronary sinus.E) A) and D)
F) A) and B) B

Question 12

This blood vessel is located in the anterior interventricular sulcus.

Accepted Answer

A)   small cardiac vein
B)   great cardiac vein
C)   middle cardiac vein
D)   anterior cardiac veinE) A) and B)
F) A) and C)

Question 13

Of the following heart chambers, which is most affected by hypertrophic cardiomyopathy?

Accepted Answer

A)   right atrium
B)   right ventricle
C)   left atrium
D)   left ventricleE) B) and D)
F) None of the above

Question 14

The inner endothelial layer that lines the heart is the

Accepted Answer

A)   epicardium.
B)   endocardium.
C)   pericardium.
D)   myocardium.E) A) and B)
F) A) and C)

Question 15

Figure 19.2
Use the diagram above to answer the following questions.
-Identify the letter that indicates the location of the bundle branches.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) C) and D)
G) A) and D)

Question 16

Describe the function of the cardiac skeleton of the heart.

Accepted Answer

The cardiac skeleton of the heart anchor...

Question 17

Which of the following vessels does not carry oxygen-poor blood to the heart?

Accepted Answer

A)   the inferior vena cava
B)   the superior vena cava
C)   the coronary sinus
D)   the pulmonary veinE) A) and B)
F) A) and C)

Question 18

Figure 19.2
Use the diagram above to answer the following questions.
-Identify the letter that indicates the location of the subendocardial conducting network.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and E)
G) B) and D)

Question 19

The correct sequence of heart wall layers from superficial to deep is epicardium, endocardium, and myocardium.

Accepted Answer

A) True 
 B)False

Question 20

Figure 19.1
Use the diagram above to answer the following questions.
-Identify the letter that indicates the left coronary artery.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) A) and E)
G) A) and B)

Exam 19: The Heart

The heart chamber with the thickest wall is the

Correct AnswerverifiedShow Answer

The are subdivisions of the atrioventricular bundle located within the upper half of the interventricular septum.

Correct Answerverifiedbundle bra...View AnswerShow Answer

Parasympathetic impulses to the SA node are transmitted on this cranial nerve.

Correct AnswerverifiedA

The valve prevents backflow of blood from the left ventricle to the left atrium.

Correct Answerverifiedmitral, le...View AnswerShow Answer

Prolapse of the atrioventricular valves is prevented by the chordae tendineae.

Correct AnswerverifiedShow Answer

Sounds of the aortic valve are heard in the second intercostal space at the right sternal margin.

Correct AnswerverifiedTrue

Irregular ridges in the walls of the ventricles are called .

Correct AnswerverifiedShow Answer

The desmosome-like structures that attach adjacent cardiac muscle cells are called

Correct AnswerverifiedShow Answer

During left ventricular systole, blood exits the heart to enter the

Correct AnswerverifiedShow Answer

Figure 19.2 Use the diagram above to answer the following questions. -Identify the letter that indicates anchor points for chordae tendineae, composed of cells from the myocardium.

Correct AnswerverifiedShow Answer

How did the sinoatrial (SA) node most likely get its name?

Correct AnswerverifiedB

This blood vessel is located in the anterior interventricular sulcus.

Correct AnswerverifiedShow Answer

Of the following heart chambers, which is most affected by hypertrophic cardiomyopathy?

Correct AnswerverifiedShow Answer

The inner endothelial layer that lines the heart is the

Correct AnswerverifiedShow Answer

Figure 19.2 Use the diagram above to answer the following questions. -Identify the letter that indicates the location of the bundle branches.

Correct AnswerverifiedShow Answer

Describe the function of the cardiac skeleton of the heart.

Correct AnswerverifiedThe cardiac skeleton of the heart anchor...View AnswerShow Answer

Which of the following vessels does not carry oxygen-poor blood to the heart?

Correct AnswerverifiedShow Answer

Figure 19.2 Use the diagram above to answer the following questions. -Identify the letter that indicates the location of the subendocardial conducting network.

Correct AnswerverifiedShow Answer

The correct sequence of heart wall layers from superficial to deep is epicardium, endocardium, and myocardium.

Correct AnswerverifiedShow Answer

Figure 19.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the left coronary artery.

Correct AnswerverifiedShow Answer

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bundle bra...
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mitral, le...
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B

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The cardiac skeleton of the heart anchor...
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