| 大白鼠颈上神经节小颗粒细胞的超微结构观察 |
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| 引用本文： | 邓德忠,朱长庚,刘庆莹,卢金活. 大白鼠颈上神经节小颗粒细胞的超微结构观察[J]. 华中科技大学学报(医学版), 1986, 0(4) |
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| 作者姓名： | 邓德忠 朱长庚 刘庆莹 卢金活 |
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| 作者单位： | 同济医科大学基础医学部人体解剖学教研室(邓德忠，朱长庚，刘庆莹)，同济医科大学基础医学部人体解剖学教研室(卢金活) |
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| 摘 要： | 本文用透射电镜观察了大白鼠颈上神经节小颗粒细胞的突触联系,证实小颗粒细胞的传入突触主要为轴体突触,突触前成分含清亮囊泡;传出突触可能为与节前纤维末梢形成的体轴突触和与主神经元形成的轴树和轴体突触。其中体轴突触目前尚未见有人报道,它可提示小颗粒细胞向节前纤维发出反馈信息以完成某种调节机能。本研究结果进一步为小颗粒细胞在颈上神经节内起中间神经元职能提供了形态学依据。
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| 关 键 词： | 中间神经元 小颗粒细胞 突触 |
Ultrastructural Observation on the Small Granular Cell of the Superior Cervical Ganglion in the Rat |
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| Deng Dezhong,Zhu Changgeng,Liu Qingying,Lu Jinhuo. Ultrastructural Observation on the Small Granular Cell of the Superior Cervical Ganglion in the Rat[J]. Journal of Huazhong University of Science and Technology(Health Sciences), 1986, 0(4) |
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| Authors: | Deng Dezhong Zhu Changgeng Liu Qingying Lu Jinhuo |
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| Affiliation: | Deng Dezhong,Zhu Changgeng,Liu Qingying,Lu Jinhuo Department of Anatomy,Faculty of Basic Medical Sciences,Tongji Medical University,Wuhan |
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| Abstract: | The synaptic connections of the small granular cell in the superior cervical ganglion of the rat were studied by transmission electron-microscope.The results identified that the afferent synapses of the small granular cell are mainly axo-somatic synapses,the presynaptic element of which contains small clear vesicles; the efferent synapses include (1) somato-axonic synapses formed probably with preganglionic terminals,(2) axo-dendritic and axo-somatic synapses formed probably with the principal ganglionic neurons.The somato-axonic synapse has not been reported in the literature so far and we suggest that the small granular cell might project feedback information to the preganglionic fibers and perform some regulative functions thereby.Present study offers further morphological basis for the hypothesis that the small granular cell serves as an interneurons in the superior cervical ganglion. |
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| Keywords: | interneurons small granular cell synapse |
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