Circulatory system diseases, disorders and function

Circulatory system diseases including both vascular disorder and heart disease that is constitute the leading cause of death. The circulatory system is normally consist of blood vessels , blood, and heart that transport oxygen and nutrient to all of cells for keep the body in proper balance. The different components of circulatory system have different function. Normally the blood vessels transport blood from the heart, then the heart usually pumps the oxygenated blood into the body, and also the oxygen, gases and the nutrients exchange into the capillaries. Here we will discuss about the circulatory system diseases.

What is a Circulatory system disease?

The circulatory system is one of the vast networks of the organs and also the vessels that are usually responsible for the flow of oxygen, blood, gases, nutrient and hormone to the entire cell of the body. Without circulatory system, the body could not able to maintain the internal environment of the body such as pH and proper temperature and also the fight against disease. Any alteration or modification of the normal function of circulatory cycle is leads to circulatory system disease including vascular disorder and heart disease. Those conditions are referred to as circulatory system diseases.

The common Circulatory system diseases

The common Circulatory system diseases are including:

Heart disease

Coronary artery disease or the heart disease is occur when the blood vessel become stiffen and narrow that supply oxygen to the heart. Unhealthy diet, stress, smoking and high blood pressure may increase the risk of heart disease. So it is one of the circulatory system diseases.


Arteriosclerosis is one of the common circulatory system diseases caused due to accumulation of cholesterol, fat and other substance into the artery wall. Due to the deposition of these substances into the artery wall, the vessels become narrow and stiffen. Normally smoking, diabetes, high blood pressure, high cholesterol level can result in narrow arteries that restrict the blood flow through the heart.


High blood pressure or hypertension are occur when an elevated force of blood pressure against the wall of artery over time. It is one of the circulatory system diseases. The hypertension can develop due to smoking, high salt in diet, kidney disease or other medical condition. Uncontrolled blood pressure may lead to heart failure, stroke, or visual problems.

Myocardial infarction

Myocardial infarction is one of the major circulatory system diseases. Due to myocardial infarction blockage of blood flow is occurred, as a result death of muscle tissue. If the blockage is occurred into the arteries of the heart muscle, those resulting hearts attack. Depending on how much tissues are dies, a victim of a myocardial infarction may survive and undergoes the cardiac rehabilitation, and strengthening of the remaining heart muscle.

Aortic Aneurysm

Another common circulatory system disease is aortic aneurysm. The aortic aneurysm normally occurs when the section of the aorta bulges swells and stretches. This bulge can weaken aorta at the point that is it may burst and releasing the blood into the body. The bleeding from an aortic aneurysm is an serious medical emergency that is occur due to smoking, high blood pressure or the high cholesterol level.


Cardiomyopathy is another circulatory system disease. Cardiomyopathy is the common disease of the heart muscle which may lead to thick, enlarge and the rigid heart muscle. Cardiomyopathy can be inherited into the nature and that causes weekend the heart muscle. If the left untreated, that may spread to involve the heart muscle and may resulting in congestive heart failure and also even death.

Rheumatic Heart Disease

Rheumatic Heart Disease is an inflammatory condition that usually involved as a result of the chronic history of the poorly managed rheumatic fever. This is one of the major circulatory system diseases. Rheumatic Heart Disease mainly associated with the infection of strep-throat which may lead to obstruction of the heart vulvas due to auto-immune destruction.

Varicose veins

Varicose veins are other common circulatory system diseases. Varicose veins may happen when vein on the legs swell, twist and also become painful. Pregnancy, aging, prolonged standing, and the defective valves contribute for the development of the varicose veins. Usually the varicose veins can be traded by wearing supportive stockings, avoiding prolonged standing and elevating the lower extremities.


Arrhythmia is abnormal rate of the heartbeat or rhythm. It can be too slow, too fast or with a irregular heart beat. When the heart beat occur in so fat then it is called tachycardia. On other hand when is too slow then it is called bradycardia. Usually the mild arrhythmia is harmless. If the poor managed then the rhythm abnormalities may life threatening. It is one of the circulatory system diseases.

Congenital Heart Defects

Congenital Heart Defects is other common circulatory system diseases. Congenital Heart Defect is the physiological or the morphological functioning of the heart which are present during birth. The major causes of Congenital Heart Defects are abnormal or incomplete development of the fetal heart during early weeks of the pregnancy. But the exact causes of Congenital Heart Defects are still unknown but it may be associated with the genetic disorder. It is impossible to prevent the Congenital Heart Defects but some medical treatment is available for this disorder.


It is one of the major circulatory system diseases. It is a symptom of underlying heart disease that may occur when the blood flow and the oxygen are restricted into the heart muscle.

The major symptoms of angina are including:

  1. Chest pain.
  2. Squeezing or the pressure into the chest.
  3. Frequent chest pain.
  4. Tightness into the chest.

Smoking, hypertension, diabetes, high blood pressure may increase the risk of angina. The treatment is mainly focus on the restoring proper blood flow into the heart.

Peripheral Vascular Disease

Peripheral Vascular Disease is normally occurred when the arteries and the vain supplying the lower extremities stiffen and narrow from the buildup of plaque. The major symptoms of Peripheral Vascular Disease are including:

  1. Fatigue.
  2. Pain with movement.
  3. Tingling.
  4. Burning in feet when resting.
  5. Pain and clamps at night.
  6. Achiness.

Aspirin, lifestyle change or aspirin drug are usually used for the treatment of Peripheral Vascular Disease. It is another common circulatory system diseases.


It is one of the major circulatory system diseases. Sometime the heart muscle does not get enough blood flow and more importantly the oxygenated blood carrier is insufficient to sustain the muscle that has a very high metabolic rate. The patient usually suffers the angina pain and they may be thinking that they have a heart attack.

All Comments

  • Very detailed post with exact diagram. Helpful for medical student and biochemist.

    Nick Allen January 3, 2017 3:38 pm Reply

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