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吴葆孙, 周开亚,华益民,刘玉杰
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WU Baosun,ZHOU Kaiya,HUA Yimin,LIU Yujie
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摘要: 采用2头白暨豚的脊髓分别做成浸制标本和切片。其脊髓式为C8-T10-LC12。根据Rexed的细胞构筑原则将其灰质分为10层,并对每层及其相关神经核的关系作了描记。在全髓白质中均发现特殊细胞群,包括侧索中的颈,胸,腰尾外侧核,背索中的脊髓背索核,以及腹索中的散在细胞。还发现其软膜内陷到脊髓深部,在白质和灰质中形成腔隙和管道并充满脑脊液,神经细胞浸于脑脊液中。作者认为这些细胞应是接触脑脊液神经元(CSF-CN)。
关键词: 白暨豚, 脊髓, 细胞构筑, 脊髓背索核
Abstract: The spinal cord from two adult females of Lipotes vexillifer was available for study.Frozen sections of the spinal cord of one animals were cut at l0 μm ,20 μm and 30μm respectively,and stained with 1% thionine,Klüver FB—CVdouble staining or by silvering.Paraffin sections of T2 and Lc1 were propared for comparison.Thirty pairs of the spinal nerves were counted in the gross anatomy in both of the specimens. The descriptive formula of the spinal cord of Lipotes vexillifer was C8-- T10- Lc12. The gray matter was divided into 10 layers according to the Rexed's Principle of the laminar cyloarchitecture pattern of spinal cord.The relationship between each of the layers and the corresponding nucleus was described.Groups of special cells were found in the lateral funiculus,dorsal funiculus and ventral funiculus of the while matter in Lipotes.But the special cell groups in the lateral funiculus in Neophocaena were found in the thoracic segments and lumbocaudal segments and were referred to lateral thoracic nucleus and lateral lumbocaudal nucleus respectively.In Lipote,these cells groups were found in the whole length of the lateral funiculus including the cervical segments.Therefore,They were referred to lateral cervical nucleus,lateral thoracic nucleus and Lateral lumbocaudal nucleus respectively. The speciaI cell groups found in the dorsal funiculus were referred to spino-dorsal-funiculus nucleus.The pia matter invaginated in the spinal cord proper and forming cavities and canals in white matter and gray rttalter.The cavities and canals were filled with cerebrospinal fluid in which the nerve cells were immersed. These cells were believed to be cerebrospinal fluid—contacting neurons(DSF—CN) and will be discussed in detail in another paper.
Key words: Lipotes vexittiffr, Spinal cord, Cytoarchitecture, Spino-dorsal-funiculus nucleus(NSDF)
吴葆孙, 周开亚,华益民,刘玉杰. 白暨豚脊髓的解剖学和组织学研究[J]. .
WU Baosun,ZHOU Kaiya,HUA Yimin,LIU Yujie. ANATOMICAL AND HISTOLOGICAL OF THE STUDIES 0N THE SPINAL CORD OF THE BAIJI (LIPOTES’VEXILLIFER)[J]. .
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