Structural Differences Between Right and Left Ventricles

The right ventricle pushes blood through the pulmonary circuit at lower pressure and its wall is thinner than that of the left ventricle. The left ventricle needs to generate 6 to 7 times as much force and as a consequence has a much thicker wall.

In cross section, the wall of the left ventricle is thick and circular while the thinner wall of the right ventricle is like a pouch attached to the wall of the left ventricle.