Blood in Motion

Now let's review how blood moves throughout the cardiovascular system.Remember,cardio refers to the heart,while vascular refers to veins,arteries,and capillaries.The right side of the heart receives blood from the body through systemic veins the superior and inferior venae cavae.This blood has delivered its oxygen load to the cells.First,the blood flows into the right upper chamber,the right atrium.It passes into the right ventricle,where it is pumped through pulmonary arteries to each lung.At the lungs, it gives off carbon dioxide and receives a fresh supply of oxygen,then returns to the left side of the heart through pulmonary veins.The blood fills the left atrium and passes into the left ventricle,where it is pumped through the aorta to take its supply of oxygenated blood to the rest of the body.