What is the outer layer of the heart?

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Multiple Choice

What is the outer layer of the heart?

Explanation:
The outer layer of the heart wall is the epicardium. It covers the myocardium and is the visceral layer of the serous pericardium. The heart itself sits inside a surrounding sac called the pericardium, which consists of fibrous pericardium plus a serous layer that splits into parietal (lining the sac) and visceral (covering the heart). So while the pericardium surrounds the heart, the actual outermost surface of the heart tissue is the epicardium. The endocardium lines the chambers, the myocardium is the muscular middle layer, and the epicardium is the protective outer layer.

The outer layer of the heart wall is the epicardium. It covers the myocardium and is the visceral layer of the serous pericardium. The heart itself sits inside a surrounding sac called the pericardium, which consists of fibrous pericardium plus a serous layer that splits into parietal (lining the sac) and visceral (covering the heart). So while the pericardium surrounds the heart, the actual outermost surface of the heart tissue is the epicardium. The endocardium lines the chambers, the myocardium is the muscular middle layer, and the epicardium is the protective outer layer.

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