运用逆行荧光素标记技术，对大白鼠大脑皮质内向尾壳核发出纤维投射之神经元的分布，参照Krins的大鼠脑皮质分区图，进行了详细的研究与观察．发现标记神经元主要集中在同侧的6、4、3、1区，2、18、7、40区亦有少量的标记神经元存在．仅在对侧的4、3区，发现有少量散在的标记细胞。该研究对解释锥体外系尤其是尾壳核复杂的生理功能，提供了进一步的形态学依据。 The use of retrograde fluorescein labeling technology, the distribution of neurons projecting fibers in the inward caudate putamen of the rat cerebral cortex, with reference to Krins rat cerebral cortical zoning map, conducted a detailed study and observation. It was found that the labeled neurons mainly concentrated on the ipsilateral 6,4,3,1 area, 2,18,7,40 area also has a small number of labeled neurons exist. Only in the contralateral 4,3 area, found a small amount of scattered labeled cells. This study provides a further morphological basis for explaining the complex physiological functions of extrapyramidal systems, especially the caudate putamen.