The Cardiovascular System

Paper Summary:

This paper explains that the heart is a pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. The author points out that the two main coronary arteries, the left and right coronary arteries, lie in sulci running over the surface of the myocardium, covered over by the epicardium, and have many branches that terminate in arterioles, supplying the vast capillary network of the myocardium. The author believes that, while diseases of this system are common, most of the risk factors are related to lifestyle habits and, thus, are modifiable.

From the Paper:

"Cardiovascular disease includes dysfunctional conditions of the heart, arteries, and veins that supply oxygen to vital life-sustaining areas of the body like the brain, the heart itself, and other vital organs. If oxygen doesn't arrive the tissue or organ will die. Ischemic heart disease is the term for obstruction of blood flow to the heart. This disorder results because excess fat or plaque deposits narrow the veins that supply oxygenated blood to the heart. Excess buildup of fat or plaque is respectively termed arteriosclerosis and atherosclerosis. Equally significant would be inadequate oxygen flow to the brain, which causes a stroke."

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