Haines D E, Koletar S L
Brain Behav Evol. 1979;16(4):271-92. doi: 10.1159/000121869.
The distribution of cerebellar corticonuclear fibers of the vermis of anterior and posterior lobes was determined for the albino rat using the Fink and Heimer method. Efferent fibers from vermal cortex terminate in the ipsilateral medial cerebellar nucleus (NM) in an organized circumferential manner. Rostral lobules (I--III) project to rostroventral and rostrocentral NM, more central lobules (IV, V, VI) project to rostrodorsal, dorsocentral and caudodorsal areas of the nucleus respectively, while caudal lobules (VII, VIII, IX) send fibers into caudal and ventrocaudal NM. No evidence was seen to corroborate the contention that individual lobules of the vermis may project essentially throughout the rostrocaudal extent of the nucleus. Although species differences are apparent the arrangement of terminal fields in the NM for vermal cortex of rats is similar to that reported for other mammals. Degenerated fibers from medial aspects of each lesion primarily enter the NM while those coursing into the juxtarestiform body originate from more lateral portions of the cortical injury. This suggests that the arrangement of cortical zones in rat is fundamentally similar to that described in other mammals.
采用芬克和海默尔方法，确定了白化大鼠前后叶蚓部小脑皮质核纤维的分布。蚓部皮质的传出纤维以有组织的圆周方式终止于同侧内侧小脑核（NM）。吻侧小叶（I - III）投射到吻腹侧和吻中央的NM，更中央的小叶（IV、V、VI）分别投射到核的吻背侧、背中央和尾背侧区域，而尾侧小叶（VII、VIII、IX）将纤维发送到尾侧和腹尾侧的NM。没有证据支持蚓部的单个小叶可能基本上投射到整个核的前后范围这一观点。尽管存在明显的物种差异，但大鼠蚓部皮质在NM中的终末野排列与其他哺乳动物报道的相似。每个损伤内侧部分的变性纤维主要进入NM，而进入近绳状体的纤维则起源于皮质损伤的更外侧部分。这表明大鼠皮质区的排列与其他哺乳动物所描述的基本相似。
