Which layer of the heart is the muscular layer?
A) myocardium
B) epicardium
C) pericardium
D) endocardium
A
Explanation: A) Correct! My/o- means "muscle," and cardi/o- means "heart."
B) This is not the muscular layer of the heart.
C) This is not the muscular layer of the heart.
D) This is not the muscular layer of the heart.
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