What are the differences of the left and right ventricles?

Both the left and right ventricles of the heart pump blood out of the heart, the difference is in where the blood goes. The right ventricle pushes blood into the pulmonary artery where it flows to the lungs and becomes oxygenated. This blood returns to the left atrium through the pulmonary veins and is then pushed into the left ventricle. The left ventricle then pumps the oxygenated blood out of the heart and into the aorta. This blood then travels through arteries and capillaries throughout the whole body supplying tissues with oxygen and removing carbon dioxide. Since the left ventricle is responsible for pushing blood a greater distance (throughout the whole body as opposed to straight to the lings) it tends to be more muscular than the right ventricle.