Sunday, March 27, 2011

Left Ventricle

Lined with endocardium, the left ventricle is one of the four chambers of the heart. It lies below the left atrium, and beside the right ventricle, from which it is separated by the interventricular septum. The left ventricle receives oxygenated blood from the left atrium through the mitral valve and pumps it out under high pressure through the aortic valve into the aorta. The left ventricle is conical in shape, and although it is smaller than the right, the left ventricle is thicker and more muscular than the right ventricle because it pumps blood at a higher pressure to make the oxygenated blood circulate to the rest of the body.