Which layer forms the outer surface of the heart?

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Study for the EPU Electrophysiology Exam with comprehensive questions and explanations. Enhance your knowledge with flashcards and a variety of question formats to ensure you are prepared to excel!

Multiple Choice

Which layer forms the outer surface of the heart?

Explanation:
The outer surface of the heart is formed by the epicardium, which is the visceral layer of the pericardium. This layer covers the external surface of the heart as the inner lining of the pericardial sac, while the heart itself sits inside the fibrous pericardium. Beneath the epicardium lies the myocardium, the thick muscular layer, and inside that is the endocardium lining the chambers. The pericardium as a whole surrounds the heart but the surface you see on the heart itself is the epicardium.

The outer surface of the heart is formed by the epicardium, which is the visceral layer of the pericardium. This layer covers the external surface of the heart as the inner lining of the pericardial sac, while the heart itself sits inside the fibrous pericardium. Beneath the epicardium lies the myocardium, the thick muscular layer, and inside that is the endocardium lining the chambers. The pericardium as a whole surrounds the heart but the surface you see on the heart itself is the epicardium.

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