THE PROJECTION OF THE RED NUCLEUS TO THE SUBNUCLEUS CAUDALIS OF THE SPINAL TRIGEMINAL NUCLEUS IN THE CAT
- VernacularTitle:猫红核向三叉神经脊束核尾侧亚核的投射——HRP法研究
- Author:
Jishuo LI
;
Huimin LI
;
Bingzhi QIN
;
Guozhu YI
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1953;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
1. The subnucleus caudalis of the spinal trigeminal nucleus of cat was injected with 30% HRP (Sigma, type Ⅵ). Well localized groups of labeled neurons were observed in the dorsolateral horn of the contralateral red nucleus. This dorsolateral horn, being present in the rostral and middle thirds of the nucleus, consisted mainly of middle-sized and small neurons.2. Injections were also made into the second and third segments of the cervical spinal cord and the caudal part of the bulbar reticular formation. The labeled neurons appearing in these experiments were diffusely distributed in the red nucleus, yet limited in the rostral third of it.3. Summarizing our findings and the data from the literature, we got the impression that the rostral two thirds of the red nucleus gave projections to the central structures rostral to the upper cervical spinal cord, and the caudal two thirds of it to those caudal to the lower cervical cord, which indicating a somatotopic organization of the red nucleus neurons giving descending projection fibers.
