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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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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1. Atherosclerosis is a disease of large and medium-sized muscular arteries Characteristics: endothelial dysfunction vascular inflammation buildup of lipids‚ cholesterol‚ calcium and cellular debris within the intima of the blood vessel wall. The build up results in atheroma (plaque formation). It is a fatty deposit in the intima of an artery‚ resulting from atherosclerosis. Atheroma/Plaque is made up of: fatty substances Cholesterol Waste products from cells Calcium
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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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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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Coronary Heart Disease Coronary heart disease (CHD) is a disease in which a waxy substance called plaque (plak) builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart muscle. When plaque builds up in the arteries‚ the condition is called atherosclerosis (ATH-er-o-skler-O-sis). The buildup of plaque occurs over many years. (nhlbi.nih.gov) CHD AND TREATMENTS: CHD is the most common type of heart disease. In the United States‚ CHD is the #1 cause of
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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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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 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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