目的：探讨大鼠皮质下端脑到前额叶皮质的传入投射。方法：用ＦＧ（荧光金）逆行追踪法对１５只Ｗｉｓｔａｒ大鼠进行研究。结果：观察到同侧苍白（ＧＰ），杏仁复合体（Ｌａ、ｂｌａ），斜角带（ｖｄｂ、ｖｄｂｄ、ｖｄｂｖ、ｈｄｂ），无名质（ＳＩ）及双侧屏状核（Ｃｌ）发出纤维向前额叶外侧中央前区投射。由此可推测在锥体外系中存在这样一个环路：前额叶皮质→脑桥核→小脑皮质→齿状核→苍白球→前额叶皮质。结论：前额叶外侧中央前区在锥体外系活动、嗅—躯体活动，嗅—内脏活动中有整合作用 Objective: To investigate the afferent projection of the cortex to the prefrontal cortex in the lower cortex of rats. Methods: Fifteen Wistar rats were studied by FG ​​(retrograde tracing) method. Results: The fibers of the same side (GP), alveolar complex (La, bla), diagonal bands (vdb, vdbd, vdbv, hdb) Prefrontal projection outside the central anterior region. It can be speculated that there is such a loop in the extrapyramidal system: prefrontal cortex pontine pardons nucleus cerebellar cortex dentin nucleus pale ball prefrontal cortex. CONCLUSION: The prefrontal lateral central anterior region has an integral role in extrapyramidal activity, olfactory-physical activity, olfactory-visceral activity