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Normal Pericardial Anatomy - Parietal & Visceral Pericardium - I

This diagram shows the parietal vs. visceral pericardium. The pericardium has, as many other serosal surfaces, a parietal and a visceral component. The parietal pericardium is composed of two layers: a serosal lining (thin red line) and a fibrous sac (thicker yellow line). The visceral pericardium or epicardium is composed of a single layer of serosal investment covering the entire heart (thin red line overlying the myocardium in blue). Note that the serosal lining of the parietal and visceral pericardium is a continuous layer of mesothelial cells. The serosal layer of the parietal and visceral pericardium face each other. The potential space lined by the serosal layers is the pericardial cavity.

A close up of the parietal (fibrous) pericardium and visceral pericardium (epicardium) of the right and left ventricles (white boxes) is shown here.

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