The ericardium is the fluid filled sac that surrounds the heart and keeps it contained inside the chest.
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The Pericardium is a conically shaped sac of serous membrane that encloses the heart and the roots of thelarge blood vesselsin vertebrates.
Pericardium Pericardium
There are three layers to the pericardium. They go in alphabetical order. The first layer is the Fibrous Pericardium. The second layer is the parietal pericardium and the third and innermost layer is the visceral layer.
The pericardium surrounds the heart like a protective sac. It contains fluid that decreases friction.
Epicardium or inner layer of serous pericardium is the innermost layer of pericardium.
visceral pericardium