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    心肌梗塞
运行环境: Win9x/NT/2000/XP/2003 文件大小: 1764 K
资源格式: Flash动画 资源等级: ★★★★
开 发 者: www.healthcentral.com 资源语言: 英文
所属分类: 心血管内科学 资源属性:     
下载次数: 1585
资源添加: 审核:myworld21 录入:admin 添加时间: 2007-7-3
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英文解说词:Heart Attack

Heart attack or myocardial infarction is caused due to coronary artery blockage.

Coronary arteries are the blood vessels which supply the heart with oxygen and nutrition.

Over time the inside of these arteries develop fibro-fatty plaques of different sizes.

These Plaques are made of cholesterol and other substances floating through the bloodstream such as inflammatory cells, proteins and calcium

Many of the plaque deposits are hard on the outside and soft on the inside.

The hard surface can crack or tear exposing the soft fatty inside.

When this happens platelets come to the area and blood clots form around the plaque.

The artery narrows further and in turn there is less room for blood to flow through the arteries.

Finally, this results in the occlusion of the coronary arteries resulting in the death of the surrounding heart muscles.

The patient experiences tightness, heaviness or constriction in the chest.


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