When the left ventricle
contracts, it squeezes blood into the body's main artery, the aorta
. The aorta then distributes blood to the rest of the body. The left atrium
is incorrect because it receives blood from the pulmonary veins and from there it passes through left AV (or semilunar) valve and into the left ventricle. The pulmonary artery
is incorrect because it carries blood coming from the right ventricle. The right atrium
is incorrect because it receives deoxygenated blood from the body via the superior and inferior vena cavas.