The circulatory systemVersión en línea helps and control the flow of the blood around the body. por lorenza aceves 1 Group One 2 Group Two The veins are: The main parts of the system are: Blood begins to circulate from the: The path of the blood at the begining: The largest artery in the body: The blood is rich of: Oxygen the heart, arteries, capillaries and veins. from the left ventricle into the aorta The returning path The aorta the heart