Pericardial cavity
Encyclopedia
The pericardial cavity is a potential space between the parietal pericardium
Pericardium
The pericardium is a double-walled sac that contains the heart and the roots of the great vessels.-Layers:...

 and visceral layer. It contains a supply of serous fluid. The serous fluid that is found in this space is known as the pericardial fluid
Pericardial fluid
Surrounding the heart is a sac known as the pericardium, which consists of two membranes. The outer layer being the fibrous parietal pericardium and the inner layer being the serous visceral pericardium. It is the serous visceral pericardium that secretes the pericardial fluid into the pericardial...

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External links

- "Chest X-ray showing pericardium, posteroanterior view"
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