PROJECTION SITES OF SUPERFICIAL OR DEEP DORSAL HORN IN THE DORSAL RETICULAR NUCLEUS

被引：25
作者：
ALMEIDA, A [1 ]
TAVARES, I [1 ]
LIMA, D [1 ]
机构：
[1] UNIV PORTO, FAC MED, INST HISTOL & EMBRYOL, P-4200 OPORTO, PORTUGAL
来源：
NEUROREPORT | 1995年 / 6卷 / 09期
关键词：
DORSAL RETICULAR NUCLEUS; SUPERFICIAL DORSAL HORN; DEEP DORSAL HORN; NOCICEPTION; BIOTINYLATED DEXTRAN; RAT;
D O I：
10.1097/00001756-199506090-00004
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
THE termination sites in the medullary dorsal reticular nucleus (DRt) of axons arising from superficial or deep dorsal horn cells were analysed by anterograde tracing with biotinylated dextran (ED). Following ED injections in spinal laminae I-III or in these laminae plus the dorsal funiculus, labelled fibres and boutons were located in the dorsalmost ipsilateral portion of the DRt. Injections covering laminae III-V or laminae I-V resulted in bilateral labelling of the ventral DRt and ipsilateral labelling of the dorsal DRt. These findings, together with previous data concerning the origin of DRt projections to the superficial or deep dorsal horn, suggest the occurrence of reciprocal anatomical loops connecting the dorsal or the ventral areas of both regions.
引用
收藏
页码：1245 / 1248
页数：4
相关论文
共 14 条
  • [1] Villanueva L., Bouhassira D., Bing Z., Et al., J Neurophysiol, 60, pp. 980-1009, (1988)
  • [2] Almeida A., Lima D., Coimbra A., Eurj Neurosci, 7, (1994)
  • [3] Bouhassira D., Villanueva L., Bing Z., Et al., Brain Res, 595, pp. 353-357, (1992)
  • [4] Almeida A., Lima D., Coimbra A., Et al., Soc Neurosci Abstr, 20, (1994)
  • [5] Almeida A., Tavares I., Lima D., Et al., Neuroscience, 55, pp. 1093-1106, (1993)
  • [6] Tavares I., Lima D., Exp Brain Res, 99, pp. 455-463, (1994)
  • [7] Lima D., Neuroscience, 34, pp. 577-589, (1990)
  • [8] Villanueva L., De Pommery J., Menetrey D., Et al., Neurosci Lett, 134, pp. 90-102, (1991)
  • [9] Veenman C.L., Reiner A., Honig M.G., J Neurosci Methods, 41, pp. 239-254, (1992)
  • [10] Paxinos G., Watson C., The Rat Brain in Stereotaxic Coordinates, (1986)
12