Objective : The morphological correlation between the ventral nerve root and the dorsal nerve root ganglion of the spinal nerve was analyzed in order to offer basis for nerve root infiltration. 目的:了解腰骶神经前根、后根、后根神经节位置关系及其变异,为下腰椎神经根造影提供解剖学依据。
Results : The ventral surface of abducent nerve root was crossed by anterior inferior cerebellar artery, inferolateral pontine artery, posterior inferior cerebellar artery, labyrinthine artery, common trunk of posterior and anterior inferior cerebellar artery and vertebral artery; 结果:从展神经根腹面跨过的有小脑下前动脉、脑桥下外侧动脉、小脑下后动脉、迷路动脉、小脑下后和小脑下前动脉总干、椎动脉;
The ventral surface of hypoglossal nerve root was crossed by the vertebral artery ( 90 % ), Occasionally, vertebral artery ran between upper and lower bundles or coursed dorsal surface of hypoglossal nerve root. 椎动脉的90%行于舌下神经根的腹面,偶尔椎动脉穿舌下神经根上下两束之间或行于舌下神经根丝的背面。
The spinal nerve formula of the finless porpoise is : C 8T 13 Lc 23. The ventral root of the spinal nerve is thicker than that of the dorsal root. 江豚脊神经式:C8T13Lc23。脊神经腹根较背根粗;