Matching Pairs Parts of the heartOnline version answer by Ana Blas Pérez 1 Right ventricle 2 left ventricle 3 Right atrium 4 aorta 5 left atrium pumps blood full of oxygen out to the body. receives blood full of oxygen from the lungs and then empties the blood into the left ventricle. It is the major blood vessel that carries blood away from the heart to the rest of the body. receives blood low in oxygen from the body and then empties the blood into the right ventricle. pumps blood low in oxygen to the lungs. In the lungs, the blood then gets a "refill" of oxygen.