Which heart layer is the outermost layer of the heart?

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Multiple Choice

Which heart layer is the outermost layer of the heart?

Explanation:
The outermost layer of the heart itself is the epicardium, which is the visceral layer of the serous pericardium. This layer covers the external surface of the heart and is continuous with the parietal layer of the serous pericardium at the great vessels. The heart wall from inside to outside is endocardium, myocardium, then epicardium. The pericardial sac (fibrous plus serous pericardium) surrounds the heart, but it is not part of the heart wall itself. So epicardium sits as the outermost layer of the heart muscle and its surface.

The outermost layer of the heart itself is the epicardium, which is the visceral layer of the serous pericardium. This layer covers the external surface of the heart and is continuous with the parietal layer of the serous pericardium at the great vessels. The heart wall from inside to outside is endocardium, myocardium, then epicardium. The pericardial sac (fibrous plus serous pericardium) surrounds the heart, but it is not part of the heart wall itself. So epicardium sits as the outermost layer of the heart muscle and its surface.

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