| THE PROJECTION LINKAGE BETWEEN THE SPINAL DORSAL HORN NEURONS AND BOTH THE SOLITARY TRACT AND DORSAL COLUMN NUCLEI |
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| 作者姓名： | 吕国蔚 孟卓 罗蕾 山上芳雄 |
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| 作者单位： | Department of Neurobiology，Capital Institute of Medicine，Visiting fellow from the Chinese Academy of Tradiational Medicine，Department of Neurobiology，Capital Institute of Medicine，Visiting fellow from Showa University Beijing 100054，PRC，Beijing，China，Beijing 100054，PRC，Tokyo，Japan |
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| 摘 要： | Electrical stimulation of the solitary tract nucleus (SN) and dorsal column nuclei (DCN)as well as microelectrode recording from the lumbal spinal dorsal horn have been used tofind and identify the axonal projection of and the afferent innervation on the spinal neuronsof pentobarbital- anesthetized rats. A total of 92 neurons was recorded and identified mainly in laminae Ⅲ-Ⅴ of the lumbarspinal dorsal horn. Of them, 38 neurons were activated antidromically from stimulation ofboth the SN and DCN. The other 54 neurons responded synaptically to both the SN andDCN stimulations. The initial antidromic responses of 8 neurons in the first group werefollowed by one or more responses synaptically driven from the SN and/or DCN stimulation.Conduction velocities were in the range of A delta fibers, but faster in the antidromicresponses and slower in the synaptic responses. These results indicate that (i) some spinal neurons issue branched axons of larger-sizedA delta fibers and double project to both the SN and D
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THE PROJECTION LINKAGE BETWEEN THE SPINAL DORSAL HORN NEURONS AND BOTH THE SOLITARY TRACT AND DORSAL COLUMN NUCLEI |
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| LU GUO-WEI,MENG ZHUO,LUO LEI,YAMAKAMI YOSHIO.THE PROJECTION LINKAGE BETWEEN THE SPINAL DORSAL HORN NEURONS AND BOTH THE SOLITARY TRACT AND DORSAL COLUMN NUCLEI[J].Science in China(Chemistry),1991(2). |
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| Authors: | LU GUO-WEI MENG ZHUO LUO LEI YAMAKAMI YOSHIO |
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| Institution: | LU GUO-WEI,MENG ZHUO,LUO LEI,YAMAKAMI YOSHIO Department of Neurobiology,Capital Institute of Medicine,Beijing 100054,PRC |
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| Abstract: | |
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| Keywords: | spinal dorsal horn solitary tract nucleus dorsal column nuclei antidromic responses synaptic responses |
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