The circulatory system consists of the heart, blood arteries, veins and capillaries. A healthy circulatory system is important for removing toxins, pollutants and cellular waste out of your body. It primarily pumps blood to and from the heart to supply oxygen and other nutrients throughout the entire body. The heart and circulation are essential to the proper functioning of all the organs and tissues of the body. Problems of the Circulatory System include: circulatory complaints, high blood pressure, low blood pressure, and weakness in the muscular contractions of the heart.