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INBDE Integrated National Board Dental Exam Prep

Category - INBDE

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Which of the following layers of the heart is primarily composed of cardiac muscle?

Epicardium
Myocardium
Pericardium
Endocardium

Explanation

Answer: B - Mycocardium or middle layer of the heart consists of cardiac muscle. The heart is a highly specialized pumping organ composed of the following layers: Endocardium (lining coat; epithelium) Myocardium (middle coat; cardiac muscle), and Epicardium (external coat or visceral layer of pericardium; epithelium).

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