Pericardium
The pericardium has an outer fibrous layer and inner serous layer. The serous layer is further split into parietal and visceral layers with a pericardial space in between that contains pericardial fluid.
The parietal layer is fused to the fibrous pericardium whilst the visceral pericardium can be considered part of the epicardium.
Image illustrating the layers of the pericardium
Innervation
The parietal layer is fused to the fibrous pericardium whilst the visceral pericardium can be considered part of the epicardium.
Image illustrating the layers of the pericardium
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Innervation
- Fibrous pericardium and the parietal layer of serous pericardium are supplied by phrenic nerves.
- Visceral layer of serous pericardium is innervated by branches of sympathetic trunks and vagus nerves.