副神經accessory nerve)是第11對腦神經,編號XI。它又可分成顱根(Cranial root)和脊髓根(Spinal root)兩條分支。其中顱根和迷走神經的分支伴行,走向咽喉[1]脊髓根則和數條頸神經分支合流,支配胸鎖乳突肌以及斜方肌的運動。 顱根的纖維為特殊內臟運動纖維,起自疑核,自迷走神經根下方出腦後與脊髓根同行,經頸靜脈孔出顱,加入迷走神經,支配咽喉肌。脊髓根的纖維為特殊內臟運動纖維,起自脊髓頸部的副神經脊髓核,由脊神經前後根之間出脊髓,在椎管內上行,經枕骨大孔入顱腔,與顱根匯合一起出顱腔。出顱腔後,又與顱根分開,繞頸內靜脈行向外下,經胸鎖乳突肌深面繼續向外下斜行進入斜方肌深面,分支支配此二肌。

Quick Facts 副神經, 支配 ...
副神經
圖上的部分舌咽神經迷走神經、副神經
View of the human brain from below. The accessory nerve emerges from the medulla of the brainstem, and is visible at the bottom of the image in blue.
支配胸鎖乳突肌, 斜方肌
標識字符
拉丁文nervus accessorius
MeSHD000055
TA98A14.2.01.184、​A14.1.02.112
TA26352
FMAFMA:6720
格雷氏p.913
神經解剖學術語英語Anatomical terms of neuroanatomy
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