Answer:
The left ventricle is the chamber of the heart that generates the high pressure needed to pump oxygen-rich blood to the whole body through blood vessels. Blood returning to the heart from the lungs enters the left atrium and passes through the mitral valve to the left ventricle. The left ventricle has a thick muscular wall to provide sufficient pressure to pump the oxygenated blood to the furthest areas of the body. Blood in the left ventricle is then pumped to the aorta as the ventricles contract and the aortic valve opens. The aorta carries and distributes oxygen-rich blood to the rest of the body.