key term - Pericardium

Definition

The pericardium is a double-layered membrane surrounding the heart, providing it with protection and support while allowing it to function efficiently. It consists of a fibrous outer layer and a thin, slippery inner layer that reduces friction as the heart beats.

Related terms

Myocardium:

The myocardium is the muscular tissue of the heart, responsible for contracting and pumping blood throughout the body.

Endocardium:

The endocardium is the smooth inner lining of the heart chambers and valves, which helps in regulating blood flow within the heart.

Epicardium: The epicardium is the innermost layer of the pericardium that sits directly on the surface of the heart muscle, also serving as part of its outer wall