The Muscular Layer of the Heart Wall is The

Question

The muscular layer of the heart wall is the:
A)epicardium.
B)pericardium.
C)myocardium.
D)endocardium.

Accepted Answer

The myocardium is the middle layer of the heart wall and consists mainly of cardiac muscle tissue. It is responsible for the pumping action of the heart. The epicardium is the outermost layer, the pericardium is the sac that surrounds the heart and the endocardium is the innermost layer.