A system of what carries the blood through the body?

Answer 1

Oxygenated blood comes out of the left ventricle in the heart and through the aorta. From there it goes to the arteries, arterioles, and then the capillaries of it's destination. After the blood has deposited the oxygen, it goes to the venules, the veins, and either the superior vena cava or the inferior vena cava, depending on whether it went to the upper or lower body, respectively. As it enters the heart through one vena cava, it goes into the right atrium, then the right ventricle, and then through the pulmonary trunk. Depending on which lung the deoxygenated blood is going to, it will either pass through the right or left pulmonary veins which deposit it blood into the lungs where it becomes oxygenated and returns to the right atrium, and the cycle repeats. :)

Answer 2

Veins and Arteries