动脉粥样硬化心脏疾病-华译网翻译公司.PDFVIP

翻译样稿 北京华译网翻译公司 Atherosclerosis (Heart Disease) 动脉粥样硬化 (心脏疾病) Objective 课程目标 • We will study about the process of blockage of the artery and the eventual formation of thrombus. • 我们将学习动脉堵塞的形成过程和血栓的最终形成。 The human heart has a prominent coronary artery. A magnified view of the coronary artery has three basic layers – Tunica Externa, Tunica Muscularis and Tunica Interna. This inner most layer is made up of squamous cells. 人类心脏内有一个主冠状动脉。该冠状动脉的放大图像中显示有 3 个基本层面 ——外膜、肌膜和内膜。最内层由鳞状细胞组成。 When the blood carries a higher level of cholesterol in the form of LDL molecule for a longer period of time, these cholesterol molecules tend to settle on the surface of the artery. Here they are absorbed through the epithelial cells and form a layer between the tunica interna and tunica muscularis. This layer is called the Plaque. As the plaque grows, it spreads along the artery wall forming a swelling which protrudes into the lumen resulting in the reduced blood flow. This is called atherosclerosis. At times epithelial cells may rupture at some point. This activates the platelets which start forming fibrin threads. Eventually a clot gets formed. The formation of this clot is known as thrombosis. The clot blocks the blood flow through the artery. 如果血流中胆固醇含量偏高且以低密度脂蛋白分子的形式存在，久而久之，这些 胆固醇分子就会在动脉血管壁内沉积。之后表皮细胞将其吸收并在内膜和肌膜中 形成一层物质。这层物质即为斑块。斑块增长，它会沿着动脉血管壁扩张，在血 管壁内部形成一个肿胀的突起，阻碍血液的流动。这就是动脉粥样硬化。当表皮 细胞在某处破裂时，血小板会形成纤维蛋白丝。最终汇聚成一个凝块。这个凝块 就是血栓，会阻碍血液在动脉血管中的流动。 Atherosclerosis (heart disease) 动脉粥样硬化（心脏疾病） Objective 课程目标 Process of blockage of the artery 动脉阻塞的形成过程 翻译样稿 北京华译网翻译公司 翻译样稿 北京华译网翻译公司 Formation of thrombus