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鸡跗部皮肤、腓肠肌初级传入纤维向脊髓的投射-HRP法

The Location amd the Central Projection of Primary Afferent Neuron of the Tarsal Skin and the Gastrocnemius Muscles in Chicken

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【作者】 刘为民郭和以陈建新马仲华

【Author】 Liu Weimin Guo Heyi Chen Jianxin Ma Zhonghua (Department of Animal Medical,Inner Mongolia Institute of Agriculture & Animal Husbandry)

【机构】 内蒙古农牧学院动物医学系内蒙古农牧学院动物医学系

【摘要】 将CB-HRP分别注入鸡跗部皮肤和腓肠肌外头内,逆行追踪其初级传入神经元的位置及初级传入纤维向脊髓的投射。证明:1、跗部皮肤的初级传入神经元胞体位于同侧 T6~S6脊神经节内,以 S2节为最高峰,L2节为1较低的峰,两峰间为1低谷。2.腓肠肌外头的初级传入神经元胞体位于同侧 T6~S4脊神经节内。以 S2为最高峰,L1有1较低的峰,两峰间在 L3有1低谷。3.跗部皮肤的初级传入终末分布于 L2~S3的6个脊髓节段。横断面观,见标记的终末密集地分布于Ⅱ、Ⅲ、Ⅳ板层(Martin 氏划分法)。4.腓肠肌外头初级传入的终末分布于 T6~S5的11个脊髓节段。横断面观,见标记的终末主要分布于背外索核和Ⅰ层,Ⅴ层,头尾向上呈连续性分布。

【Abstract】 Injections of CB-HRP (conjugates of horseradish peroxidase with chole-agen subunit B) into the skin on tarsal area and the lateral head of gastroc-nemius muscles (GM) of 3~4 month old chicken.The results were asfollows:1.Following injectioninto the tarsal skin,the labeled cells distrib-uted in T6-S5 dorsal root ganglia (mostly in S2) and the labeled fibers andterminals distributed in lamina Ⅱ,Ⅲ,Ⅳ (Martin’s lamina,1973) of L2-S3segments of the spinal cord.2.Following injection into the GM,the labeledcells distributed in T6-S4 dersal root ganglia (mostly in S2) and the labeledfibers and terminals distributed in lamina Ⅰ,Ⅴ and the nucleus of thedorsalateral funiculus of T6-S5 segments (most prominent in S3) of the spi-nal cord.

  • 【文献出处】 内蒙古农牧学院学报 ,Journal of Inner Mongolia Institute of Agriculture and Animal Husbandry , 编辑部邮箱 ,1991年04期
  • 【被引频次】1
  • 【下载频次】9
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