4 Disorders Of The Circulatory System are as listed below:\tCoronary artery disease (CAD) – also referred to as atherosclerosis, it affects the vessels supplying blood to the heart muscles.\tHeart failure – in this state of the heart, blood is not being pumped effectively to fulfil the needs of the body. One of the main symptoms of this disease is the lung-congestion hence it is also referred to as congestive heart failure\tAngina – it is a symptom of acute chest pain surfaces when there is a dearth of oxygen supply to the muscles of the heart.\tHigh blood pressure (hypertension) – is a condition where the blood pressure is higher than the normal blood pressure (120/80).