摘要
本研究用尼氏染色和快速 Golgi 法在光镜下观察了雌雄大鼠脑视前区性双形核的细胞构筑。结果表明;1.核团体积雄性大于雌性3.1倍。2.核团内神经元密度无明显性差异,但与核团外细胞密度比较有显著差别。3.神经元组成上的百分比有明显的性差别,雄性大神经元多于雌性,雌性的中、小神经元多于雄性。4.树突树分布方向有明显性差别,雄性树突树多向背外侧、腹外侧和内侧方向分布;而雌性多向背侧和腹内侧方向分布。5.树突树平均总长度,雄性大于雌性,雌雄树突树在 X 轴上的分布范围有显著差别,但在 Y 轴上无明显差异。6.树突棘的密度,雌性高于雄性2.1倍。
The cytoarchitecture of the sexually dimorphic nucleus of the preoptic area
(SDN-POA)of male and female rats was studied with Nissl stain and rapid Golgi
method under light microscope.The results were as follows:1.The volume of the
SDN-POA of the male was markedly 3.1 times larger than that of the female.2.
In both sexes,the cell density of the SDN-POA significantly increased as compared
with that of the surrounding,while the sexual difference of the cell density within
the SDN-POA was not found.3.There was marked male-female difference in the
neu(?)onal organization of the nucleus,in which the number of large cells was signi-
ficantly greater in males than in females.4.In males,dendritic trees principally
oriented in dorsolateral,ventrolateral and medial directions.In contrast,dendritic
trees in females mainly oriented in dorsal and ventromedial directions.5.The mean
total length of the dendritic tree was larger in males than in females and the dis-
tribution of the dendritic tree showed sexual difference in the X axis but not in the
Y axis.6.The number of the dendritic spine was 2.1 times greater in females than
in males.
出处
《解剖学报》
CAS
CSCD
北大核心
1989年第2期165-170,共6页
Acta Anatomica Sinica
关键词
大鼠
双形核
细胞构筑
性间差别
Sexually dimorphic nucleus of the preoptic area
Neuron
Dendrite
Dendritic spine
Cytoarchitecture
