The heart has three main layers: epicardium, myocardium, and endocardium. π
The epicardium is the outer layer, which protects the heart. The endocardium is the inner layer, lining the chambers. But the myocardium is different from these layers because it's made of muscle! π
While epicardium and endocardium help with structure and protection, the myocardium actually does the pumping. This is why it's called cardiac muscle. Just like athletes
train their muscles, the myocardium needs good care to keep working strong! π
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