Why does left ventricle possess a thicker walls than the right ventricle?
The Left ventricle possesses thicker walls than the right ventricle because the left ventricle has to pump the purified blood to all the parts of the body, whereas right ventricle's function is to pump the deoxygenated blood just to the lungs for purification which are lying near the heart. The thicker walls allow the blood to be pumped forcefully to different parts away from the heart.