Which layer of the heart is the outermost layer, which contains fat to cushion the heart?

A) Epicardium
B) Myocardium
C) Endocardium
D) Pericardium
E) Pericardial cavity

Epicardium

The outermost layer of the heart's wall, serving as a protective layer and a part of the heart's electrical conduction system.

Outermost Layer

The external layer of an object or structure, which is the farthest from its center or core.

Pericardium

The double-walled sac containing the heart and the roots of the great vessels, providing protection and reducing friction.