The vascular system involves with the heart and blood vessels. The blood vessels embody arteries that are tubes that transport blood from your heart to the remainder of your body, and veins, that come back the blood to your heart. This complex system is concerned in several numerous functions, however the foremost vital is transporting very important oxygen and nutrients to your tissues and organs. Diseases of the vascular system will be dangerous or will severely decrease your quality of life. In general, diseases of the blood vessels involve either blockage, sometimes because of coronary artery disease or degeneration leading to aneurism. Common diseases include: coronary artery disease, aneurism and Peripheral blood vessel disease.