SOMATOTOPICAL LOCALIZATION OF THE RAPHE—SPINAL PROJECTION IN THE RAT A RETROGRADE HRP STUDY
- VernacularTitle:大白鼠大中缝核至脊髓的体部定位投射——HRP逆行法
- Author:
Yi ZHANG
;
Gong JU
- Publication Type:Journal Article
- Keywords:
Nucleus raphe maganus;
Spinal cord;
HRP retrograde method;
Rat
- From:
Acta Anatomica Sinica
1955;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Retrograde HRP technique was used to study the somatotopical organization of the raphe—spinal projection of the rat. HRP or wheat germ agglutinin conjugated HRP was injected into unilateral gray matter or dorsal horn of the cervical cord or lumbar cord. The following conclusions have been reached.The caudal part of NRM projects to areas ventral to the dorsal horn. Projection to the dorsal horn was found to originate from the rostral part of NRM, which is somatotopically localized. Cells projecting to the cervical dorsal horn are distributed more rostrally than those to the lumbar dorsal horn, although an extensive overlapping of these two parts is evident. Somatotopical localization in the form of "gap" as suggested by Watkins et al. could not been verified in our experiment.The functional significance of the sornatotopical organization of NRM is discussed.
