背肩胛神經
背肩胛神經(Nervus dorsalis scapulae)源自臂神经丛,一般由C5頸脊神經前支分出。該神經在離開C5後會穿入中斜角肌,並自提肩胛肌及菱狀肌的深層穿過。
背肩胛神經 | |
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The right brachial plexus with its short branches, viewed from in front. (Dorsalis scapulae labeled at left, second from top.) | |
细节 | |
來源 | 臂神经丛(C5) |
支配 | 小菱狀肌、大菱狀肌、提肩胛肌 |
识别标示 | |
拉丁语 | nervus dorsalis scapulae |
TA98 | A14.2.03.011 |
TA2 | 6409 |
FMA | FMA:65279 |
格雷氏 | p.932 |
神经解剖学术语 |
該神經支配菱狀肌以及提肩胛肌,前者將肩胛骨向脊柱拉,後者則負責將肩胛骨上舉。若該神經受損可以觀察到患側的肩胛骨明顯遠離中線[1]。如果要求患者作立正的姿勢,可以看到患者無法將肩膀向後夾。單獨傷到背肩胛神經基本上是相當少見的,一般會合併斜角肌傷害。
該神經可能會與背肩胛動脈伴行。若該條動脈不存在,則會與頸橫動脈深支伴行。
參見
- 背肩胛動脈
- 胸背神經
其他圖像
- Brachial plexus
- Brachial plexus with courses of spinal nerves shown
- Deep Branch of Transverse Cervical running with Dorsal Scapular
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