AFFERENT CONNECTIONS OF THE PREOPTIC REGION——STUDIED WITH HRP METHOD IN THE RAT
- VernacularTitle:大白鼠视前区的传入联系——HRP法研究
- Author:
Jingqiang XIE
;
Zechun PENG
- Publication Type:Journal Article
- From:
Acta Anatomica Sinica
1957;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
The afferent connections of the magnocellular preoptic (poma), lateral preoptic (pol), and medial preoptic (pom)nuclei have been investigated with horseradish peroxidase (HRP) method in the rat. Our findings indicated that1. poma mainly receives projection from the rhinencephalic structures including the anterior olfactory nucleus, olfactory tubercle, piriform cortex, entorhinal cortex, the nucleus of lateral olfactory tract, the anterior amygdaloid area, and the cortical amygdaloid nucleus;2. pom mainly receives afferent fibers from some of the medial hypothalamic nuclei;3. pol has the most extensive fiber input, mainly from some of the brain stem nuclei; and4. poma is the only one of the preoptic nuclei which has reciprocal connections with the contralateral forebrain structrues. It is interesting that the poma and pol receive the afferent fibers from different prefrontal cortical regions and the dorsal portion of pom may have input from the lateral reticular nucleus and nucleus tractus solitarii that the ventral portion may not have.In addition, a large number of HRP-labeled cells could be seen in the supraoptic nucleus after injecting any one of the preoptic nuclei and the possible signification was discussed.
