The pericardrial is located where?

The pericardium is a layer around the heart, which in itself consists of three layers - the visceral pericardium (attached to the surface of the heart), the parietal pericardium, and the fibrous pericardium (the latter two are fixed to each other, and have the appearance of a single membrane in gross anatomy). There is a small amount of liquid between the parietal and visceral pericardia, which allows the heart to beat without causing as much friction