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Regarding thickness of walls how distinct are heart chambers

Regarding the thickness of their walls how dissimilar are the heart chambers?

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The ventricle walls are thicker than atrium walls as ventricles are structures accountable for the pumping of blood to the tissues or lungs. The muscular work of ventricles is harder and their muscle fibers expand more.

The left ventricle is much muscular than the right ventricle as pumping blood to the lungs (that is, the right ventricle task) is simpler (requires less pressure) than pumping blood to the other tissues of the body (that is, the left ventricle task).

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