本文解剖20侧副神经,其中成年人11侧,初生儿9侧;左11侧,右9侧。以后在手术显微镜下对胸锁乳突肌支与斜方肌支进行“向中性”分离,同时观察各分支在神经干内的位置其及相互关系。本研究可为面神经 - 副神经吻合术提供副神经干内显微外科解剖学的有关资料,也填补了副神经解剖学的理论知识。副神经出颈静脉孔后,行向后下,经胸锁乳突肌上半深面,约于二腹肌后腹下缘下方2厘 This article dissects 20 side of the nerve, including 11 adult side, 9 newborns; left 11 side, right 9 side. After surgery under the microscope on the sternocleidomastoid and trapezius musculus branch “to the neutral” separation, and observe the location of the branches in the nerve trunk and their relationship. This study can provide information about the anatomy of the accessory nerve in the facial nerve and accessory nerve anastomosis, and also fill the theoretical knowledge of the accessory neuroanatomy. Vice nerve jugular vein hole, the line to the next, the sternocleidomastoid upper half of the deep, about the lower end of the belly muscle under the abdominal margin 2%