| 摘要: |
| 用 HRP 法对奶山羊内脏大神经的节前神经元在脊髓的分布部位及节段进行了研究,结果表明,内脏大神经的节前神经元分布于胸(T3)——腰(L1)和十二个节段,越向胸髓尾端,标记细胞趋于增多,主要集中于 T8-13节内,而以 T11-12节标记细胞最多,其高峰在 T12,标记细胞分布于脊髓手术同侧的五个区,即中间外侧核主部(ILp)、中间外侧核索部(ILf)、中介核(IC)、腹角外侧缘核(LM)、中介核旁室管膜部(ICpe),但95.51％的标记细胞集中在 IL_p。标记细胞多为梭形、三角形或椭圆形。50微米以下者占73.35％,50微米以上者仅占2.59％。此外,在腹角中央外侧区(CL)也发现标记细胞。 |
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| Localization and Segmental Distribution of Preganglionic Neurons of The Greater Splanchnic Nerve of The Milk Goat--a Study With HRP method |
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| Abstract: |
| After HRP was injected into the nerve trunk or applied to the central stump of the left greater splanchnic nerve of the milk goat,the labelled sympathetic preganglionic neurons in the spinal cord were observe.The results were as follows: 1、The labelled cells were distributed continuously in twelve spinal segments from T3 to L1 of the operation side.The more caudally,the greater the fraction of labelled cells was.About 84.67％ of the total number of labelled cells were distributed in caudal six segments from T8-13,67.95％ in caudal four segments from T10 to T13,33％ in T11 and T13 segments,and the accumulation peak was situated in T,accumulated about 23.32％ of the total number of labelled cells. 2、The labelled cells were located in five nuclei:the nucleus intermediolateralis pars principalis(ILp),the nucleus intermediolateralis pars funicularis (ILf),the nucleus intercalatus (IC),the nucleus intercalatus pars paraependymalis (ICpe),and the nucleus margolateralis cornu anterius (LM). It is worthy to be noted that some labelled cells were found in the centrolateral area of anterior cornu (CL) distributed in T9-11 segments. |
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