Question 1

Which of the following is not an age-related change in the heart?

Accepted Answer

A)   fibrosis of cardiac muscle
B)   decline in cardiac reserve
C)   atherosclerosis
D)   thinning of the valve cuspsE) C) and D)
F) B) and D)

Question 2

The atrioventricular node is located in the

Accepted Answer

A)   interventricular septum, near the heart base.
B)   inferior part of the interatrial septum.
C)   walls of the ventricles, with the other Purkinje fibers.
D)   right atrium, just inferior to the opening of the superior vena cava.E) B) and C)
F) A) and B)

Question 3

The small cardiac vein is present on the

Accepted Answer

A)   right ventricle.
B)   left ventricle.
C)   left atrium.
D)   right atrium.E) B) and C)
F) All of the above

Question 4

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) C) and D)
F) None of the above

Question 5

The superior corner of the right atrium of the heart is located at the

Accepted Answer

A)   costal cartilage of the sixth rib, a fingerʹs width lateral to the sternum.
B)   fifth intercostal space along a line extending inferiorly from the midpoint of the clavicle.
C)   costal cartilage of the third rib where it attaches to the sternum.
D)   midpoint of the jugular notch.E) A) and B)
F) A) and C)

Question 6

Which structure develops from the embryological chamber called the bulbus cordis?

Accepted Answer

A)   the left ventricle
B)   the sinoatrial node
C)   the right ventricle
D)   the left atriumE) None of the above
F) All of the above

Question 7

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

Accepted Answer

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

Question 8

Blood within the pulmonary veins returns to the

Accepted Answer

A)   left ventricle.
B)   left atrium.
C)   right ventricle.
D)   right atrium.E) All of the above
F) C) and D)

Question 9

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) A) and C)
G) B) and C)

Question 10

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) None of the above
G) A) and C)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

At which corner point of the heart does one listen for the sound of the closing aortic semilunar valve?

Accepted Answer

A)   inferior right
B)   inferior left
C)   superior left
D)   superior rightE) B) and C)
F) A) and B)

Question 13

The term for pain caused by deficient blood delivery to the heart wall is

Accepted Answer

A)   angina pectoris.
B)   myocardial infarct.
C)   ischemia.
D)   pericarditis.E) A) and B)
F) A) and C)

Question 14

What structures anchor the chordae tendineae?

Accepted Answer

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

Question 15

If the beating heart makes a ʺlub-dupʺ sound, the ʺdupʺ sound is caused by

Accepted Answer

A)   the apex of the heart hitting the anterior chest wall.
B)   vibrations that result from the semilunar valves slamming shut.
C)   a stenotic atrioventricular valve.
D)   the large force of the contracting ventricles.E) A) and C)
F) None of the above

Question 16

The heart chamber with the thickest wall is the

Accepted Answer

A)   left ventricle.
B)   left atrium.
C)   right ventricle.
D)   right atrium.E) C) and D)
F) All of the above

Question 17

Describe the function of the cardiac skeleton of the heart.

Accepted Answer

The cardiac skeleton of the heart anchor...

Question 18

Which of the following veins does not deliver blood directly to the right atrium?

Accepted Answer

A)   coronary sinus
B)   superior vena cava
C)   the great cardiac veins
D)   inferior vena cavaE) B) and C)
F) A) and B)

Question 19

The valve responsible for preventing backflow of blood from the lungs into the heart.

Accepted Answer

A)   tricuspid valve
B)   pectinate muscles
C)   aortic semilunar valve
D)   bicuspid valve
E)   pulmonary semilunar valveF) A) and B)
G) D) and E)

Question 20

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

Accepted Answer

mitral, le...

Exam 19: The Endocrine System

The atrioventricular node is located in the

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What structures anchor the chordae tendineae?

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The small cardiac vein is present on the

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The heart chamber with the thickest wall is the

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

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

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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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If the beating heart makes a ʺlub-dupʺ sound, the ʺdupʺ sound is caused by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Describe the function of the cardiac skeleton of the heart.

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

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

Correct Answerverifiedmitral, le...View AnswerShow Answer

The valve responsible for preventing backflow of blood from the lungs into the heart.

Correct AnswerverifiedShow Answer

Which of the following is not an age-related change in the heart?

Correct AnswerverifiedShow Answer

The term for pain caused by deficient blood delivery to the heart wall is

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The superior corner of the right atrium of the heart is located at the

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At which corner point of the heart does one listen for the sound of the closing aortic semilunar valve?

Correct AnswerverifiedShow Answer

Which of the following veins does not deliver blood directly to the right atrium?

Correct AnswerverifiedShow Answer

Blood within the pulmonary veins returns to the

Correct AnswerverifiedShow Answer

Which structure develops from the embryological chamber called the bulbus cordis?

Correct AnswerverifiedShow Answer

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The cardiac skeleton of the heart anchor...
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mitral, le...
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