and arteriovenous malformation. Some that are less common‚ but do occur would include drugs‚ infection‚ and trauma. Dissecting aneurysms occur when blood enters a vessel wall through a rupture in the intima‚ which is the inner lining of vein or artery. The damage in dissecting aneurysms varies greatly depending on the damage it has already caused. These are the weakest aneurysms‚ because they don’t leave the premises of the parent vessel. There are cases were dissecting aneurysms cause great damage
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CHAPTER.1 INTRODUCTION For decades‚ scientists have been using electromagnetic and sonic energy to serve medicine. But‚ aside from electro surgery‚ their efforts have focused on diagnostic imaging of internal body structures—particularly in the case of x-ray‚ MRI‚ and ultrasound systems. Lately‚ however‚ researchers have begun to see acoustic and electromagnetic waves in a whole new light‚ turning their attention to therapeutic—rather than diagnostic—applications. Current research is exploiting
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The full name for heart disease is coronary heart disease. This is when there are blockages in the coronary arteries. These blockages are usually cause by atherosclerosis. “Atherosclerosis is the buildup of cholesterol and fatty deposits‚ also called plaques‚ on the inner walls of the coronary arteries” (A‚ 2). When these blockages start to form issues come about. Since the arteries are being blocked‚ it can result in less blood traveling to the heart. If the blood traveling to the heart is
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incision in the chest to correct and fix abnormalities affecting heart production. The most common type of heart surgery: Coronary artery bypass grafting which improves the blood flow to the heart (Types of Heart Surgery NHLBI‚ 2013). The procedure involves using a healthy artery or vein from the body and connecting/grafting‚ to the blocked coronary artery. The grafted artery or vein bypasses the blocked portion‚ creating a new path for oxygen-rich blood to flow to the heart muscles (Types of Heart Surgery
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disease in our arteries can begin as early as our teenage years. Often a body ’s resistance to insulin‚ which is a natural hormone produced by the pancreas‚ leads to Type 2 diabetes and disease in your blood vessels.
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narrowing of arteries. The regulatory centers of cardiac and vasomotor controls the sympathetic neuron to increase the blood pressure with regard to increase in blood volume. These regulating centers are located in the medulla oblongata show vasoconstriction while increasing heart rate. When the heart beat increases the amount of blood entering the arteries increases therefore the constriction of blood vessels takes place. The pressoreceptors in located in the aorta and carotid arteries send impulses
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coronary arteries. The vessels that remove the deoxygenated blood from the heart muscle are known as cardiac veins. Anatomical organization The coronary circulation starts at the beginning of the aorta; here we find two arteries in the right and the left side! right and left coronary arteries.
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Cardiovascular disease (CVD) refers to damage to‚ or disease of‚ the heart‚ arteries‚ veins and/or smaller blood vessels. The three major forms of this disease are: * Coronary heart disease – the poor supply of blood to the muscular walls of the heart by its own blood supply vessels‚ the coronary arteries * Stroke – the interruption of the supply of blood to the brain * Peripheral Vascular disease – diseases of the arteries‚ arterioles and capillaries that affect the limbs‚ usually reducing blood
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Give an account of how a poor diet and obesity can increase the chance of a person developing Coronary Heart Disease (CHD) A good diet consists of consuming a full range of all the various nutrients needed for proper function of the body and bodily systems. When someone consumes the correct nutrients in the correct proportions‚ they are considered to have a “Balanced Diet”. However‚ when someone is not consuming the correct nutrients or not consuming the correct amount of nutrients they are
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The human heart pumps blood through veins‚ arteries‚ and capillaries all the time in order to stay alive. A heart attack occurs when cells in the heart cannot receive enough oxygen because not enough blood is being circulated. The more time that passes without proper treatment in order to restore the flow of blood‚ the greater the risk a person has of damaging their heart and of dying. Atherosclerosis is the hardening and narrowing of the arteries and it is usually the cause of heart attacks
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