It is correct to say that all organ systems function together and are interdependent because all organ systems perform along and are dependent. Your circulatory system keeps all of your different organ systems going by supply blood, nutrients, and chemical element to all or any of your cells.
Arteries that are away from the heart are red in color, whereas, veins which are towards the heart are blue in color. Therefore, the cardiovascular system tells the mechanism of blood circulation around the human body.