and almost half a million die‚ according to the American Heart Association. A heart attack often is the first symptom of coronary artery disease. The blockage usually is caused by atherosclerosis‚ the build-up of plaque in the artery walls‚ and/or by a blood clot in a coronary artery. A slow buildup of this plaque may almost block one of your coronary arteries. The cause of the heart is not always known. Heart attacks may occur when you are resting or asleep‚ after a sudden increase in physical
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swelling of an artery. They are thought to be caused by atherosclerosis. These aneurysms are also correlated with the causes that develop aortic aneurysms. The wall of the popliteal artery is weakened‚ and thought to be because of inherited factors. In patients with multiple aneurysms in different arteries‚ it is theorized that there is an underlying weakness in the tissues. The exact nature of this has not been clarified at this time. Possibly the propensity of the popliteal artery to develop
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characteristics‚ put “A” for artery‚ “C” for capillary‚ and “V” for vein: v contain the lowest pressure a contain the highest pressure a has thick tunica media v thin tunica media c smallest of the blood vessels a carries blood away from heart v largest lumen—blood reservoir c has only one tunic (intima) v carries blood toward the heart c site of exchange of nutrients 3. Name the three groups of arteries: 1. elastic artery 2. muscular artery 3. ateriole 4. Elastic arteries have a thick tunica
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Blood is moved from the heart to the body by arteries. Blood pressure is the force of the blood pushing against the walls of the arteries. With each heartbeat‚ blood is pumped into the arteries. Systolic pressure is determined when the heart is contracting which causes increased pressure in the arteries. Diastolic Blood pressure is the remaining pressure in the arteries when the ventricles of the heart is relaxed allowing the heart to fill with blood. Blood pressure is influenced by cardiac output
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link between smoking and cardiovascular disease? Smoking is a major cause of atherosclerosis - a buildup of fatty substances in the arteries. Atherosclerosis occurs when the normal lining of the arteries deteriorates‚ the walls of the arteries thicken‚ and deposits of fat and plaque block the flow of blood through the arteries In coronary artery disease‚ the arteries that supply blood to the heart become severely narrowed‚ decreasing the supply of oxygen-rich blood to the heart‚ especially during
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circulation of blood in the arteries of the legs. In very severe claudication the pain is also felt at rest. Intermittent claudication may occur in one or both legs and often continues to worsen over time. However‚ some people complain only of weakness in the legs when walking or a feeling of "tiredness" in the buttocks. Impotence1（erectile dysfunction） is an occasional complaint in men. 1.[’ɪmpətəns] The usually intermittent nature of the pain is due to narrowing of the arteries that supply the leg with
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through the vena cava and pumps it through the pulmonary artery to the lungs‚ and the left side receives the oxygenated blood from the lungs through the pulmonary vein and pumps it into the aorta to be distributed all over the body bringing oxygen and glucose to cells who need it for respiration. A natural pacemaker made of nerve
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through the coronary arteries‚ to the heart muscle. Coronary heart disease is a term used to describe the condition when the supply is blocked by fatty deposits or a thrombosis. The arteries become blocked due to a build up of fatty material in the lining. This causes the artery to become narrower‚ then the heart must pump harder to force the blood through. This causes the blood pressure to rise. There are three classifications of Coronary heart disease. If the coronary arteries become partly blocked
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In this case‚ the patient developed locked in syndrome due the basilar artery thrombosis leading to complete absence of voluntary movement with cognitive function intact. Locked-in syndrome caused basilar artery thrombosis most commonly related to trauma‚ vascular‚ or cardiac malformation‚ as the basilar remain a major supply of posterior circulation; patient with basilar artery thrombosis commonly presented with sudden and dramatic neurological impairment mostly sudden vertigo‚ dysarthria‚ headache
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Comparison: On-pump CABG Outcome reduction of side effects. Reduced complications‚ improved treatment outcome EBP Coronary artery bypass grafting is performed in patients who have atherosclerosis (clogged arteries) in arteries supplying the heart. The surgery usually uses the internal mammary artery to create a detour or bypass around the blocked part of the coronary artery. A part of the saphenous vein is removed and
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