Which one has the thickest wall?
Right auricle
Right ventricle
Left auricle
Left ventricle
D.
Left ventricle
The thickness of the muscular wall of the left ventricle is much greater than that of the right because for the right ventricle force is relatively small as the blood goes only to the lungs which are very close to the heart. The left ventricle however, has to develop sufficient force to push blood around all the rest of the body.