pericardial cavity

The pericardial space or cavity is the fluid-filled space between the parietal and visceral layers of the serous pericardium. In normal conditions, it contains only a small amount of serous pericardial fluid, usually 15-20 mL.

Related pathology

Pericardial effusion is the pathological accumulation of fluid. When this results in impairment of cardiac function, it is called pericardial tamponade.