A) epicardium
B) myocardium
C) endocardium
D) All of these
Correct Answer: D
Solution :
The wall of heart is composed of 3 layers [a] Epicardium-The external covering layer. It is somatic, mesodermal or perital mesoderm with fibrous tissue, also fused with heart walls. [b] Myocardium-The intermediate cardiac muscular tissue layer. [c] Endocardium-The internal layer consrsa of smooth muscles and in contact with the blood.
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