Blood vessels enter and exit from the _____ of the heart.
A. apex
B. base
C. auricles
D. trigone
E. inferior aspect
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Question 2) The function of the pericardial fluid is to
A. reduce friction between the pericardial membranes.
B. lubricate the heart valves.
C. replace any blood that is lost.
D. provide oxygen and nutrients to the endocardium.
E. stimulate the heart.
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Question 3) Which of the following layers forms the bulk of the heart wall?
A. epicardium
B. pericardium
C. endocardium
D. myocardium
E. visceral pericardium
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Question 4) A stab wound into the heart can result in cardiac tamponade. This means that
A. blood enters the pleural cavity.
B. the heart is compressed by blood in the pericardial sac.
C. the electrical conduction system of the heart is damaged.
D. the left coronary artery has been damaged or cut.
E. the heart has lost all of its blood.
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Question 5) Another name for the visceral pericardium is the
A. endocardium.
B. epicardium.
C. isocardium.
D. myocardium.
E. visocardium.
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Question 6) E.Z. Goen is admitted to the cardiac unit with a diagnosis of endocarditis. When E.Z. asks the nurse where the infection is located, the nurse replies that the infection is in
A. the outer layer of the heart wall.
B. the inner lining of the heart.
C. a membranous sac that encloses the heart wall.
D. the muscular layer of the heart.
E. the lining of the mediastinum.
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Question 7) A serious condition in which a large amount of fluid accumulates in the pericardial cavity and puts pressure of the heart is
A. endocarditis.
B. pericarditis.
C. a myocardial infarction.
D. cardiac tamponade.
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Question 8) The epicardium
A. covers the surface of the heart.
B. lines the walls of the ventricles.
C. is known as the fibrous pericardium.
D. attaches inferiorly to the diaphragm.
E. is also called endocardium.
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Question 9) The pericardial sac is lined with
A. fibrous pericardium.
B. parietal pericardium.
C. visceral pericardium.
D. myocardium.
E. epicardium.
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Question 10) Which of the following is NOT true about the heart?
A. The heart is about the size of a closed fist.
B. The heart is located in the mediastinum.
C. The apex of the heart is directed superiorly and to the left.
D. Knowing the heart's position is important for effective CPR.
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