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目的 建立和了解成年大鼠纹状体、边缘区和苍白球在脑中的立体形态和相互关系 .方法 在大鼠脑的连续冠状切片 Nissl染色的基础上通过 Onyx2超级图形工作站应用计算机图形技术进行了三维重建 .结果 边缘区位于尾壳核和苍白球之间 ;尾壳核的立体形态呈近似的内凹半球形 ,从嘴侧到尾侧随着脑平面的增宽尾壳核逐渐向外侧 (即靠近外轮廓的方向 )移位 ,体积为 (37.77± 9) m m3,最大嘴尾径为 6 .2mm;最大背腹径为 4.9m m;最大内外径为 3.5 2 9mm.苍白球呈块形 ,位于尾壳核的内侧 ,除内侧外其他三个方向均被尾壳核包绕 ,体积为 (4.0 5± 0 .0 6 ) mm3,最大嘴尾径为 4.41mm,最大背腹径为 2 .6 45 mm ,最大内外径为 1.5 44 m m.边缘区呈现一个片状扇形结构 ,体积为 (0 .48± 0 .0 2 ) mm3,最大嘴尾径为 1.6 m m,最大背腹径为 2 .15 8m m,最大内外径为0 .17mm;同尾壳核和苍白球一样从嘴侧到尾侧随着脑平面的增宽边缘区亦逐渐向外侧 (即靠近外轮廓的方向 )移位 ,其移位的幅度亦明显大于脑平面增宽的幅度 ;整个边缘区从嘴侧到尾侧呈均匀变化 ,其片状逐渐变宽 ,长度 (背腹径 )逐渐变小 ,从而形成一个盘状结构 .结论 建立了大鼠脑纹状体、边缘区和苍白球的三维立体结构
Objective To establish and understand the stereoscopic morphology and the relationship between the striatum, marginal zone and globus pallidus in the brain of adult rats.Methods Computer-based techniques were performed on the Onyx2 supergraph workstation on the basis of Nissl staining of rat coronal sections Dimensional reconstruction.Results The marginal zone is located between the caudate putamen and the globus pallidus.The caudate putamen has an approximately concave hemispherical shape with a dilated hemispherical shape, (37.77 ± 9) m m 3 with a maximum tail mouth diameter of 6.2 mm, a maximum dorsoventral diameter of 4.9 mm and a maximum internal and external diameter of 3.5 2 9 mm. Shape, located in the medial caudate putamen, surrounded by the caudate putamen in all three directions except the medial and lateral, with a volume of (4.05 ± 0.06) mm3, a maximum of 4.41 mm of tail diameter and a maximum dorsoventral diameter of 2.45 mm and a maximum internal and external diameter of 1.544 m m. The edge region presents a lamellar fan-shaped structure with a volume of (0.48 ± 0 .0 2) mm3, a maximum tail mouth diameter of 1.6 mm and a maximum dorsoventral diameter For 2.158m m, the maximum diameter of 0.17mm; with the caudate putamen and globus pallidus from the mouth to the tail side With the widening of the brain plane, the marginal zone also gradually shifted to the outside (ie, near the outer contour), and its amplitude of displacement was also significantly larger than that of the brain. The entire marginal zone was uniform from the mouth to the tail Changes gradually, its flaky gradually widened, the length (dorsoventral diameter) became smaller, and formed a disc structure.Conclusion The establishment of rat brain striatum, marginal zone and globus pallidus three-dimensional structure