猕猴大脑中动脉内皮的年龄变化一扫描电镜观察  

AGE-RELATED CHANGES OF ENDOTHELIUM OF MIDDLE CEREBRAL ARTERY IN RHESUS MONKEYS-A SCANNING ELECTRON MICROSCOPIC STUDY

作　　者：张红旗[1] 邝国璧[1] 丁贞佳 李峰[1] 龙大宏[1] 陈乾生[2] 

机构地区：[1]中山医科大学解剖教研室,广州510089 [2]华南濒危动物研究所

出　　处：《解剖学杂志》1995年第2期124-127,共4页Chinese Journal of Anatomy

摘　　要：用扫描电镜对9只3个年龄组雄性猕猴大脑中动脉及其中央支起始部内皮的年龄变化进行了研究,见内皮细胞多呈梭形,其长轴与血流方向一致,内皮细胞在干叉交界处相互移行.核区隆起、微绒毛、边缘小褶及桥样结构等随增龄而发生明显的变化.中央支以直角发自大脑中动脉,其始部内面有螺旋形瓣膜样的嵴.并就这些变化与某些老年性脑血管病的关系进行了探讨.The endothelium of the middle cerebral artery and its central branches of nine Rhesus Monkeys in three age groups were studied by scanning electron microscopy. The results showed that endothelial cells were mostly long fusiform in shape and orientated in the direction of blood flow. Endothelial cells had the transition from trunk to its branches. Protuberance of nucleic region, microvilli, edge's folds and bridge-like structures apparently changed with advancing age. Central branches originated from the middle cerebral artery at the right angle. Its begining part inside had spiral valviform crest. The relation between these changes and aged cerebralvascular diseases is discussed in the paper.

关 键 词：猕猴 脑动脉 内皮细胞 电子显微镜 

分 类 号：Q959.848[生物学—动物学] R322.81[医药卫生—人体解剖和组织胚胎学]