Which pericardial layer lines the outer surface of the heart and forms the pericardial cavity?

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Multiple Choice

Which pericardial layer lines the outer surface of the heart and forms the pericardial cavity?

Explanation:
Directly covering the outer surface of the heart is the visceral pericardium (epicardium). The pericardial cavity, a potential space filled with a small amount of lubricating fluid, lies between this visceral layer and the parietal pericardium, which lines the inner surface of the fibrous pericardial sac. The fibrous pericardium is the tough outer layer that anchors the sac, while the endocardium lines the interior of the heart chambers. So the layer that lines the heart and helps define the pericardial space is the visceral pericardium.

Directly covering the outer surface of the heart is the visceral pericardium (epicardium). The pericardial cavity, a potential space filled with a small amount of lubricating fluid, lies between this visceral layer and the parietal pericardium, which lines the inner surface of the fibrous pericardial sac. The fibrous pericardium is the tough outer layer that anchors the sac, while the endocardium lines the interior of the heart chambers. So the layer that lines the heart and helps define the pericardial space is the visceral pericardium.

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