Question 1

Figure 19.2
Use the diagram above to answer the following questions.
-Identify the letter that indicates the tissue layer of the heart known as the epicardium.

Accepted Answer

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

Question 2

The base of the aorta derives from which of these ʺoriginalʺ heart chambers in the embryo?

Accepted Answer

A)   ventricle
B)   bulbus cordis
C)   sinus venosus
D)   atriumE) A) and D)
F) A) and C)

Question 3

Large cardiac cells of the conducting system embedded in the ventricular walls between the endocardium and myocardium.

Accepted Answer

A)   sinoatrial node
B)   atrioventricular node
C)   subendocardial conducting network (Purkinje fibers) 
D)   atrioventricular bundle
E)   atrioventricular branchesF) A) and B)
G) A) and E)

Question 4

Gap junctions and fasciae adherens are associated with that join adjacent cardiac muscle cells.

Accepted Answer

The answer of Gap junctions and fasciae adherens are associated...

Question 5

The electrical event that begins each heartbeat occurs at the sinoatrial (SA) node.

Accepted Answer

A) True 
 B)False

Question 6

Blood is carried to capillaries in the myocardium by way of the

Accepted Answer

A)   coronary arteries.
B)   coronary sinus.
C)   fossa ovalis.
D)   coronary veins.E) B) and C)
F) None of the above

Question 7

Oxygen-rich blood returning from the lungs enters the left atrium through two right and two left pulmonary veins.

Accepted Answer

A) True 
 B)False

Question 8

Insertion of a stent to treat coronary artery disease (CAD)

Accepted Answer

A)   is accomplished by laparoscopic incision at the jugular notch.
B)   involves grafting a portion of the saphenous vein that contains the stent into the occluded artery.
C)   occurs through a catheter inserted in the femoral artery.
D)   requires open heart surgery.E) A) and B)
F) All of the above

Question 9

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

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and D)
G) All of the above

Question 10

Figure 19.1
Use the diagram above to answer the following questions.
-Identify the letter that indicates the aortic arch.

Accepted Answer

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

Question 11

The left ventricular wall of the heart is thicker than the right ventricular wall so that it can

Accepted Answer

A)   expand the thoracic cage during diastole.
B)   pump blood with greater pressure.
C)   pump blood through a smaller valve.
D)   accommodate a greater volume of blood.E) None of the above
F) All of the above

Question 12

A specific coronary vessel that lies in the anterior interventricular sulcus is the

Accepted Answer

A)   coronary sinus.
B)   middle cardiac vein.
C)   anterior interventricular artery/Left anterior descending artery (LA
D)  .
D)   circumflex artery.E) B) and D)
F) B) and C)

Question 13

Parasympathetic fibers innervate the SA node, AV node, and cardiac musculature.

Accepted Answer

A) True 
 B)False

Question 14

There is a foramen ovale in the skull and another one in the heart. The foramen ovale in the heart gives rise to the

Accepted Answer

A)   openings between the ventricles.
B)   openings between the atria and ventricles.
C)   aortic semilunar valve.
D)   fossa ovalis.E) None of the above
F) A) and B)

Question 15

What is the effect of the parasympathetic fibers carried by the vagus nerve?

Accepted Answer

A)   The heartbeat is not influenced by the vagus nerve.
B)   They slow the heartbeat.
C)   They speed up the heartbeat.
D)   They increase the force of cardiac contractions.E) A) and B)
F) A) and C)

Question 16

What structures anchor the chordae tendineae?

Accepted Answer

A)   papillary muscles
B)   trabeculae carneae
C)   semilunar valves
D)   pectinate musclesE) A) and B)
F) A) and C)

Question 17

A specific coronary vessel that lies in the coronary sulcus is the

Accepted Answer

A)   posterior interventricular artery.
B)   right coronary artery.
C)   right marginal artery.
D)   small cardiac vein.E) A) and B)
F) B) and D)

Question 18

The cardiac centers that control heart rate are located in the

Accepted Answer

A)   medulla oblongata of the brain stem.
B)   pituitary gland of the diencephalon.
C)   cerebral cortex of the temporal lobe.
D)   thoracic segments of the spinal cord.E) C) and D)
F) None of the above

Question 19

The crista terminalis can be used to locate all of the following structures except the

Accepted Answer

A)   opening of the superior vena cava.
B)   opening of the inferior vena cava.
C)   opening of the pulmonary veins.
D)   opening of the coronary sinus.E) B) and D)
F) A) and B)

Question 20

The small cardiac vein is present on the

Accepted Answer

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

Exam 19: The Heart

Large cardiac cells of the conducting system embedded in the ventricular walls between the endocardium and myocardium.

Correct AnswerverifiedShow Answer

Figure 19.2 Use the diagram above to answer the following questions. -Identify the letter that indicates the tissue layer of the heart known as the epicardium.

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Oxygen-rich blood returning from the lungs enters the left atrium through two right and two left pulmonary veins.

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The cardiac centers that control heart rate are located in the

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What structures anchor the chordae tendineae?

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The electrical event that begins each heartbeat occurs at the sinoatrial (SA) node.

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A specific coronary vessel that lies in the coronary sulcus is the

Correct AnswerverifiedShow Answer

What is the effect of the parasympathetic fibers carried by the vagus nerve?

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Blood is carried to capillaries in the myocardium by way of the

Correct AnswerverifiedShow Answer

The base of the aorta derives from which of these ʺoriginalʺ heart chambers in the embryo?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The left ventricular wall of the heart is thicker than the right ventricular wall so that it can

Correct AnswerverifiedShow Answer

Figure 19.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the aortic arch.

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The small cardiac vein is present on the

Correct AnswerverifiedShow Answer

Insertion of a stent to treat coronary artery disease (CAD)

Correct AnswerverifiedShow Answer

A specific coronary vessel that lies in the anterior interventricular sulcus is the

Correct AnswerverifiedShow Answer

Parasympathetic fibers innervate the SA node, AV node, and cardiac musculature.

Correct AnswerverifiedShow Answer

The crista terminalis can be used to locate all of the following structures except the

Correct AnswerverifiedShow Answer

There is a foramen ovale in the skull and another one in the heart. The foramen ovale in the heart gives rise to the

Correct AnswerverifiedShow Answer

Gap junctions and fasciae adherens are associated with that join adjacent cardiac muscle cells.

Correct AnswerverifiedShow Answer

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