Why is the wall of the left ventricle so much thicker than the wall of the right ventricle?
It needs more contractile power than the right ventricle, because the left side pumps blood to the rest of the body, whereas the right pumps blood to the lungs.
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What is the function of the fibrous pericardium?
Anchors and protects the heart, as well as prevents it from overstretching.
