在55例成人脑标本上观察小脑动脉与三叉神经根的接触规律及小脑上动脉、小脑下前动脉的起点、分支概况,发现三叉神经根与小脑动脉的接触率为35.48％。依血管与三叉神经根相接触的形式,将本组所观察的结果分为三种类型,为探讨三叉神经痛的病因提供初步的形态学依据。 The contact pattern between the cerebellar artery and the trigeminal nerve root and the origin and branch of the superior cerebellar artery and the inferior cerebellar artery were observed in 55 adult brain specimens. The contact rate between the trigeminal nerve root and the cerebellar artery was 35.48%. According to the vascular and trigeminal nerve root contact form, the group observed the results are divided into three types, in order to explore the cause of trigeminal neuralgia provide a preliminary morphological basis.