The circulatory system is responsible for sending blood, oxygen, and nutrients throughout the body. When blood flow to certain parts of the body is reduced, for example due to high blood pressure, stroke, atherosclerosis, or heart attack, it will cause symptoms due to interference with the circulatory system, The circulatory system consists of the heart and blood vessels, including arteries, veins and capillaries. The heart is the main organ of the circulatory system, with the function of pumping blood throughout the body. Arteries and veins differ in their function. The arteries will carry blood out of the heart throughout the body, then veins carry blood back to the heart. Capillary tissue connects arteries and veins, sends nutrients and oxygen to the body's cells, and secretes metabolic waste such as carbon dioxide. Some Disorders of the Circulatory System If blood flow is interrupted, then the body's organs will be damaged and result in several complications of the di...