借助改良的透射电镜技术成功地显示了培养新生大鼠的心肌细胞及其连接的超傲结构特征。培养7-8天时心肌细胞含散在的粗、细肌丝或平行排列和分支的肌原纤维,其间线粒体和糟原颗粒十分丰富。心肌细胞间连接表现为简单性连接,中间连接和闰盘等形式,其形成机理可能与细胞生长发育时所处的周围环境条件不同有关。 With the help of the improved TEM, we have successfully demonstrated the cardiomyocytes cultured in neonatal rats and the ultrastructural features of their connections. Myocytes cultured for 7-8 days contained scattered coarse and fine filaments or myofibrils arranged and branched in parallel, during which mitochondria and grains were very abundant. Myocardial intercellular connection showed simple connections, intermediate connections and intercalated disc and other forms, the formation mechanism may be related to the cell growth and development of the surrounding environmental conditions are different.