1 8 4 4 4 5 5 6 2 3 7 1 To the Body Superior Vena Cava Pulmonary Artery 8 4 4 4 Pulmonary Veins Pulmonary Veins 5 5 6 Mitral Valve 2 Pulmonary Valve Aortic Valve 3 Tricuspid Valve 7 Inferior Vena Cava 1

Veins bring O2 poor blood from upper part of body Brings O2-rich blood from left ventricle to entire body 1 O2-poor blood to right lung O2-poor blood to left lung 8 4 4 4 O2-rich blood from right lung 5 O2-rich blood from left lung 5 6 Lt. Ventricle pushes O2-rich blood to aorta and body 2 O2-poor blood enters the right atrium then right ventricle 3 7 Rt. Ventricle pushes O2-poor blood to right & left lung Veins bring O2-poor blood from lower part of body