[摘 要] 目的 研究大脑中动脉弹性纤维的构筑及分布。 方法 采用Weigert染色方法显示弹性纤维，光镜观察大鼠大脑中动脉弹性纤维的构筑与分布;透射电镜观察弹性纤维的超微结构。 结果 大鼠大脑中动脉的弹性纤维构成一完整的、波浪状的内弹性膜，着色均匀，中膜、外膜仅有散在的弹性纤维分布，缺乏完整的外弹性膜;电镜下可见内弹性膜规则，均质，厚度均一，边缘光滑、清晰。 结论 大鼠大脑中动脉弹性纤维形成完整的内弹性膜，这可能对脑组织具有一定的保护作用。

    [关键词] 大鼠;大脑中动脉;弹性纤维

    Architecture and distribution of elastic fibers in rat middle cerebral artery

    WEN Can，ZHU Xing-hong

    Department of Surgical Applied Anatomy and Operative Surgery，College ofMedicine，Third MilitaryMedical Uni-versity，Chongqing400038，China

    Abstract:Objective To explore the morphological architecture and distribution of elastic fibers in rat middle cerebral artery.Methods The elastic fibers of middle cerebral artery from12Wistar rats were stained by Weigert's method.The morphological architecture and distribution were observed under light microscope and the ultrastructure by transmission electron microscope.Results In the middle cerebral artery of rats ......