Which ventricle is that muscle layer thinner and thicker?

The muscle layer of the heart, known as the myocardium, is thicker in the left ventricle compared to the right ventricle. This is because the left ventricle pumps oxygenated blood to the entire body, requiring more force and thicker muscular walls. In contrast, the right ventricle pumps deoxygenated blood only to the lungs, necessitating a thinner muscle layer.