摘要
本文应用Nissl法,Luxol Fast Blue法及Golgi法对猫延髓尾段背角(三叉神经脊束核尾侧亚核)第Ⅴ层进行了系统的细胞构筑学研究。发现此层中含有大、中、小型神经元,其中中型最多,小型次之,大型最少。依树突分支形态及树突棘的多寡,将第Ⅴ层中的神经元分成辐射状和丛状两大类。前者又可分成锥体型、多极型及“双极型”神经元。其中,锥体型与多极型神经元各包括着有棘的及平滑的两类。本文并结合电生理学、细胞内注射技术及HRP追踪技术的研究结果,对第Ⅴ层中神经元的功能进行了探讨。
Using Nissl method,Kluver and Barrera method and rapid Golgi method,we found that there were large,medium and small-sized neurons in lamina V of medullary dorsal horn Of the cat,the medium-sized neurons were most numerous and the large-sized neurons were least in number.According to the dendritic branching pattern and the number of spines,the laminaⅤneurons could be divided into two categories——the radiate neuron and bushy neuron.The former contained three subcategories:pyramidal,polygonal and bipolar neurons.Spiny and smooth types were found in pyramidal and polygonal neurons.Considering with the results of neurophysiologic research and intracellular injection of HRP by others,we presume that different types of neurons in laminaⅤmight also differ functionally.In addition,according to the results of transganglionic transport of HRP from the peripheral and retrograde transport of HRP from the thalamus,it was assumed that some neurons in lamina V received messages from the primary afferent in laminaⅤ,Ⅳ,andⅢ,and thence,transmitted them to the thalamus.
作者
张建华
李惠民
李继硕
Zhang Jianhua;Li Huimin;Li Jishuo(Department of Anatomy,The Fourth Military Medical College,Xian)
出处
《解剖学报》
CAS
1988年第4期386-393,456,共9页
Acta Anatomica Sinica
基金
中国科学院科学基金
关键词
细胞构筑
第V层
延髓背角
猫
Cytoarchitecture
Lamina V
Medullary dorsal horn
Cat
