Question

Cardiac muscle occurs in _______________.

• A. Epicardium
• B. Endocardium
• C. Myocardium
• D. All the above

Answer 1

The correct option is C Myocardium

A. The epicardium is the outermost layer of our heart

B. The endocardium is the innermost layer of our heart. It lines the inner surfaces of the heart chambers which also includes the heart valves.

C. The cardiac muscle layer of the heart is known as the myocardium. These are made up of cardiomyocytes. The myocardium is found in the walls of all four chambers of the human heart.

So the correct answer is Myocardium. Thus the correct option is C.