Of the three layers of the heart wall, the layer that contains cardiac muscle is the
A) epicardium.
B) visceral layer of serous pericardium.
C) myocardium.
D) endocardium.

Question

Quizplus · Accepted Answer

The myocardium is the layer of the heart wall that contains cardiac muscle cells. The epicardium (A) is the outermost layer of the heart wall, while the visceral layer of serous pericardium (B) is the layer that lines the pericardial cavity. The endocardium (D) is the innermost layer of the heart wall and lines the heart chambers and valves.

Of the Three Layers of the Heart Wall, the Layer