The cardiovascular system comprises of the heart, arteries, veins and capillaries. The function of this system is to provide oxygen rich blood from the heart to the various parts of the body and then transporting the oxygen deficient blood from various parts of the body back to the heart. The purpose of bringing back the blood to the heart is to oxygenate is once again for utilization by the body.
Any illness in this system can disrupt the functioning of not only the heart, but also other parts of the body which need blood for their optimum functioning. In case the heart is unable to pump blood to the arteries and subsequently to the capillaries due to blockage and narrowing of blood vessels, then it would affect the whole body. Diseases of the cardiovascular system lead to heart failure, heart attack, stroke, aneurysm, peripheral artery disease and cardiac arrest. For a common man, all of these sound the same. But actually, these diseases affect body in different manners often leading to death.
Heart failure is one of the most common diseases. This results when the heart completely gives up. Due to weakening of heart muscles, the heart is no longer able to keep up with the pumping mechanism. Heart failure can occur due to infections, defects or diseases and sometimes due to cardiomyopathy, which means thickening of the muscles of the heart.
Heart attack results when a clot occurs in the coronary artery. This clot obstructs the proper flow of the blood, thereby destroying the heart muscles. A stroke results in an event of insufficient blood supply to the brain. As a result of the stroke, the brain tissues begin to get destroyed after each stroke.
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