小脑(cerebellum)位于颅后窝,后上方隔着小脑幕,与端脑枕叶底面相对。前下方与脑干之间,借三对小脑脚(cerebellar peduncles)相连:①小脑中脚(middle cerebellar pe duncle)起自脑桥基底部外侧,弯向背侧连于小脑。小脑下脚(inferior cerebellar pedun cle)主要起自脊髓和下橄榄核(inferior olivary nucleus),在小脑中脚的内侧进入小脑。小脑中间比较狭窄的部位,称小脑蚓(ver mis of cerebellu ......