The circulation of blood along with the transport of nutrients in our body is done by cardiovascular system. This organ system comprises of the heart, blood vessels and blood. Cardiovascular system also does the transportation of oxygen to every part of the body and at the same time removes carbon dioxide that is produced during metabolism. Elimination of unwanted wastes, regulation of body temperature and fighting against diseases are some other important functions of the cardiovascular system. Heart, being the prime organ of the system is just about the size of our clenched fist and acts as a pump that helps to move the blood through the blood vessels in the body. Blood is pumped by the heart and enables us to stay alive as well as breathe.
Water is the major constituent of blood while nutrients, hormones, proteins, antibodies and soluble waste materials make up the rest part. Blood vessels, which work to transport blood to all parts of the body, comprise of arteries for carrying oxygenated blood from the heart and the capillaries help in distributing nutrients and oxygen to every part of the body. It is the function of the venules and veins to bring back the deoxygenated blood to the heart for disposal of unwanted and toxic waste materials.
Though the cardiovascular system is pretty complex, it is the most effectively functioning organ system that results in good health of the body. Scientific researches reveal that the prime cause of death around the globe is cardiovascular disease. There are several forms of cardiovascular disease; some of them are being discussed here:
Various types of cardiovascular disease:
1. Atherosclerosis – It is the hardening of the arteries.
2. Coronary Artery Disease – It is basically the building up of plaque in the arteries that results in decreasing the flow of blood in the heart.
3. Hypertensive Heart Disease – High blood pressure results in making the heart hypertensive.
4. Heart Failure – When the heart is unable to pump the required amount of blood to meet the body’s requirements, the condition is termed as Heart Failure.
5. Cardiomyopathy – It is the heart condition that is caused by the effects of drugs, infections or alcohol. This condition decreases the amount of oxygen supply to the muscles in the heart.
6. Congenital Heart Disease – This is the heart defect that is detected right at the time of birth.
Heart disorders have some distinct symptoms. Chest pain, abnormal heart rhythms, heartburn, dizziness, lethargy, fainting, somnolence and inability to breathe properly are some of the prime symptoms which indicate towards heart disorders.