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扬子鳄视神经的研究
引用本文:吴孝兵,王朝林.扬子鳄视神经的研究[J].动物学报,1993,39(4):406-411.
作者姓名:吴孝兵  王朝林
作者单位:安徽师范大学生物系,安徽师范大学生物系,安徽省扬子鳄繁殖研究中心 芜湖 241000,芜湖 241000,宣城 242000
摘    要:本文研究了扬子鳄的视神经。结果明明,视神经中可见有髓纤维和无髓纤维。有髓纤维分布均匀,无髓纤维常聚集成团;胶质细胞核,在视神经中可看到两种类型,有髓纤维总数为200,000-300,000根,纤维直径范围为0.41-6.66μm,只有一个峰值,峰直径为1.31μm;纤维轴突径与纤维直径之比(d/D)约为0.73-0.75。经统计分析,同个体左右侧神经纤维数目有差异,同一神经中周围区与中央区数目分布

关 键 词:扬子鳄  视神经  结构  神经纤维

ELECTRON MICROSCOPIC OBSERVATION ON OPTIC NERVES OF ALLIGATOR SINENSIS
WU XIAO-BING CHEN BI-HUI WANG CHAO-LIN.ELECTRON MICROSCOPIC OBSERVATION ON OPTIC NERVES OF ALLIGATOR SINENSIS[J].Acta Zoologica Sinica,1993,39(4):406-411.
Authors:WU XIAO-BING CHEN BI-HUI WANG CHAO-LIN
Abstract:The optic nerves of Chinese Alligator were studied with transmitting electron microscopy. There are myelinated and unmyelinated fibers in alligator's optic nerve. Many unmyelinated fibers usually closely contact with one another. Two different nuclei were found in optic nerve cell. According to the quantitative analysis,the number of myelinated fibers is about 200,000-300,000;their diameters of cross-section range from 0. 41-6. 66 um with the highest frequenty at 1. 31 um;the ratio of axis cylinder to the diameter of the fiber is about0.73-0. 75 um. By statistical analysis,there's differece in the same individual;and no difference in the same side between individuals.
Keywords:Chinese Alligator  Optic nerve  Counting of fibers  Fiber diameter spectra  
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