The nurse is reviewing with the client the three major layers of the heart wall and how they relate to the pericardium. What is the best description by the nurse to the client about the myocardium layer of the heart?
A) Thick, strong muscles making up the middle layer
B) Thin outer layer of the cardiac wall
C) A membrane lining the heart's interior wall
D) Outermost layer anchoring the heart
A
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Thick, strong muscles making up the middle layer is known as the myocardium. The thin outer layer of the cardiac wall is known as the epicardium. The endocardium is a membrane lining the heart's interior wall. The pericardium is the outermost layer anchoring the heart.
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