The Aorta 

The aorta is the largest artery in your body and carries the freshly oxygenated blood from your heart to the rest of your body. The aorta travels from the left ventricle, over the top of your heart, curving down behind your heart toward your legs. At about the level of your belly button, the aorta splits into two vessels, the femoral arteries, that go into your legs. All along the length of the aorta, smaller arteries branch off and deliver blood to the various parts of your body.