Blood flow through the body red arteries is responsible for directing oxygen-rich blood away from the heart and toward the body’s tissues and essential organs as the heart beats. These include the heart muscle as well as the brain, liver, kidneys, stomach, and muscles.
In addition, veins, which are depicted here in blue, return oxygen-poor blood from the tissues to the heart. After that, it travels to the lungs to obtain more oxygen before returning to the heart to allow the cycle to continue.
