The inner lining of the heart is the
A)epicardium.
B)myocardium.
C)endocardium.
D)pericardium.

Question

Quizplus · Accepted Answer

The inner lining of the heart is the endocardium, which is a thin, smooth layer of cells that lines the chambers of the heart and covers the heart valves. The epicardium is the outermost layer of the heart, the myocardium is the middle layer composed of cardiac muscle cells, and the pericardium is the sac that surrounds and protects the heart.

The Inner Lining of the Heart Is the