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The walls of the heart are composed primarily of cardiac muscles called _____.

(a) visceral pericardium

(b) parietal pericardium

(c) epicardium

(d) myocardium.

User Bassim
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1 Answer

6 votes

Answer:

Myocardium

Step-by-step explanation:

myo meaing muscle

cardi meaning heart

User Gaurav Verma
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