What does the left heart ventricle do?

What does the left heart ventricle do?

Your heart has four chambers: two chambers on the top (right atrium and left atrium) and two chambers on the bottom (right ventricle and left ventricle). The right ventricle pumps blood only to your lungs. The left ventricle pumps blood to the rest of your body. The left ventricle is the thickest chamber in your heart.