【作者】 刘佳； 胡满； 廖智慧； 赵丽杰；

【Author】 LIU Jia, HU Man, LIAO Zhi-hui, ZHAO Li-jie, (College of Animal Science and Technology, Agriculture University ofHebei Baoding 071001,China)

【机构】 河北农业大学动物科技学院；

【摘要】 鸟类的视觉发达,是研究动物视觉系统的理想材料。视顶盖接受90％对侧视网膜节细胞的投射,是重要的视觉中枢。本实验用尼氏体染色法、Golgi-CoxⅡ法、羰花青荧光染料DiI逆行神经标记法及WGA-HRP追踪法四种方法对雏鸡视顶盖的SGC层的细胞形态特征进行了观察比较和统计分析。SGC层细胞以大、中型细胞为主,可分为Ⅰ型细胞和Ⅱ型细胞。前者多具有纺锤形或三角形的胞体,面积较小,从胞体发出2-3支主树突, 树突野较大;后者多具有三角形和多边形的胞体,面积较大,发出多支树突,树突野较小。更多还原

【Abstract】 Birds, as a good material for the research of the animals’ visual system, have excellent visual capacity. Approximately 90% of the retinal ganglion cells contribute to the tectofugal pathway in chick. The optic tectum is very important to visual system. The morphological characteristics of tectal cells in stratum griseum centrale (SGC) in chick were studied by Nissl staining, Golgi-Cox staining, DiI retrogradely labeling and WGA-HRP labeling method. Most of the SGC cells were large and medium cells. The cells were divided into "Type Ⅰ cells" and "Type Ⅱ cells". The former showed spindle and triangular soma, had smaller somal area but bigger dendrites field. The latter showed triangular and polygonal soma had laregerer somal area but smaller dendrites field.更多还原