Takahashi T
J Comp Neurol. 1985 Jan 15;231(3):281-309. doi: 10.1002/cne.902310302.
Analysis of cytoarchitecture and connectivity showed that the lateral thalamus of the hooded rat is composed of eight nuclei. An examination of the cytoarchitecture permitted the identification of seven cellular fields: nucleus suprageniculatus (sg), nucleus lateralis posterior pars caudomedialis (lpcm), nucleus lateralis posterior pars lateralis (lpl), nucleus lateralis posterior pars rostromedialis (lprm), intramedullary area (ima), nucleus lateralis dorsale pars ventrolateralis (ldvl), and nucleus lateralis dorsale pars dorsomedialis (lddm). An analysis of the connectivity showed that lpl is further divisible into a rostral (lplr) and a caudal (lplc) sector, bringing the total number of nuclei to eight. Nucleus suprageniculatus, the most caudal element of the lateral thalamus, is composed of medium to large, fusiform, and multipolar neurons. It contains a terminal field of the projection of the superficial layers of the ipsilateral superior colliculus. Nucleus lpcm, found rostrolateral to sg, is loosely packed with large multipolar neurons. A terminal field of the superficial layers of the superior colliculus of both sides fits precisely within its cytoarchitectural boundaries. Nucleus lpl, a long cellular territory found lateral to lpcm, extends from the caudal pole of the dorsal lateral geniculate nucleus to the caudal pole of ldvl and contains round cells which are smaller and more densely packed than those of lpcm. Its caudal portion (lplc) contains another terminal field of the ipsilateral superior colliculus while its rostral portion (lplr) contains a terminal field of the projection of Area 17. Area 18 also projects to lplr, whereas Area 18a projects to both lplr and lplc. The intramedullary area, which occupies the fibrous zone between lpl and the dorsal lateral geniculate nucleus, contains round and fusiform neurons and is innervated by Area 18a. Nucleus lprm, situated medial to lpl, is characterized by round neurons which are frequently found in clusters. It is innervated by Areas 17, 18, and 18a. Nucleus ldvl is evenly packed with moderately large, polygonal cells and contains the complete terminal fields of both Areas 17 and 18. It also receives inputs from Area 18a. Finally, lddm, tightly packed with small, round cells and lying medial to ldvl, receives inputs from Area 4.
细胞结构和连接性分析表明，带帽大鼠的外侧丘脑由八个核组成。对细胞结构的检查可识别出七个细胞区域：上膝状体核（sg）、后外侧核尾内侧部（lpcm）、后外侧核外侧部（lpl）、后外侧核嘴内侧部（lprm）、髓内区（ima）、背外侧核腹外侧部（ldvl）和背外侧核背内侧部（lddm）。连接性分析表明，lpl可进一步分为嘴侧（lplr）和尾侧（lplc）两个部分，使核的总数达到八个。上膝状体核是外侧丘脑最靠尾侧的部分，由中到大的梭形和多极神经元组成。它包含同侧上丘表层投射的终末场。lpcm核位于sg核的嘴外侧，由大型多极神经元松散排列而成。双侧上丘表层的终末场恰好位于其细胞结构边界内。lpl核是一个长的细胞区域，位于lpcm核的外侧，从背外侧膝状体核的尾极延伸至ldvl核的尾极，包含圆形细胞，这些细胞比lpcm核的细胞更小且排列更紧密。其尾侧部分（lplc）包含同侧上丘的另一个终末场，而其嘴侧部分（lplr）包含17区投射的终末场。18区也投射到lplr，而18a区投射到lplr和lplc。髓内区占据lpl核与背外侧膝状体核之间的纤维区域，包含圆形和梭形神经元，并接受18a区的神经支配。lprm核位于lpl核的内侧，其特征是圆形神经元，常成群出现。它接受17区、18区和18a区的神经支配。ldvl核由中等大小的多边形细胞均匀排列而成，包含17区和18区的完整终末场。它还接受18a区的输入。最后，lddm核由小圆形细胞紧密排列而成，位于ldvl核的内侧，接受4区的输入。
