摘要
用HRP法研究了40只大白鼠的黑质—丘脑投射。将动物分为两组,一组向丘脑各核团注射HRP,观察SNR中的标记细胞;另一组将HRP注入SNR,观察丘脑各核团中的顺行标记纤维及终末分支。大鼠黑质—丘脑投射主要起自SNR,但也有少量起自SNC。SNR全长均有细胞起始,但尾侧部较多。SNR的背侧及腹侧均有细胞起始,但腹侧部较多。黑质—丘脑投射主要终止在VM,但在MD、Pf、VA及CL中亦有少量终止,和猫及猴的终止部位在分布范围上基本相似,但各部在数量上有些差别。
The nigrothalamic projections were studied with HRP technique in 40 rats.Theanimals were divided into two groups.In one group HRP was injected into varioussubdivisions of the thalamus to observe the retrograde labelled cells in the reticularzone of substantia nigra(SNR)and in the other group HRP was injected into SNRto observe the anterograde labelled fibers and terminals in the thalamus.The nigrothalamic projections were found to originate mainly from SNR,but afew from the compact zone of substantia nigra(SNC)were also observed.Thefibers originated from all parts of the SNR,but the fibers originating from thecaudal part out number those from the rostral part and the ventral part was foundto predominate over the dorsal part.The nigrothalamic projections mainly terminated in ventral medial nucleus ofthe thalamus,but a few fibers terminating in dorsal medial nucleus,parafascicularisnucleus,ventral anterior nucleus and central lateral nucleus of the thalamus were alsofound.It is essentially similar with the site of termination and distribution ofnigrothalamic fibers in the cat and monkey,but there are some quantitative differ-ences.
作者
包新民
邝国陶
Bao Xinmin;Kuang Guotao(The Fourth Medical College of PLA)
出处
《解剖学报》
CAS
1983年第2期156-161,231,共7页
Acta Anatomica Sinica
