目的 明确颈上神经节（superior cervical ganglion，SCG）与第2颈神经及椎动脉的解剖关系，为临床诊治上颈性眩晕提供形态学基础。 方法 解剖15具（30侧）成人尸体标本，观察颈上神经节与C2的交通支及至椎动脉的分支。 结果 5侧未见SCG与C2之间存在神经连接；25侧存在神经连接，其中18侧存在迷走神经参与，7侧可见SCG分支支配椎动脉。SCG分支与C2前支汇合后，交感神经纤维分别至C2前、后支及椎动脉。 结论 SCG与C2的交通支及其对椎动脉的支配关系，可为阐明上颈性眩晕发病机理及建立有效治疗方案提供重要解剖学依据。
Abstract
Objective To demonstrate the anatomical relationship between superior cervical ganglion (SCG) and second cervical nerve (C2) and the innervated branch from SCG to vertebral artery, for providing anatomical basis for the clinical diagnosis of the upper cervical vertigo. Methods Fifteen adult cadavers (total 30 sides) were dissected to observe the communicating branches of SCG with C2 and the branches of the vertebral artery. Results There was no neural connection between SCG and C2 in 5 sides. There were neural connection between SCG and C2 in the remaining 25 sides, of which the vagus nerves were involved in 18 sides. The innervated branches were found from SCG to vertebral artery in 7 sides. After the SCG branch merged with the anterior branch of C2, the sympathetic nerve fibers were transferred to the anterior and posterior branches of C2 and the vertebral artery respectively. Conclusions The communicating branches of SCG and C2 and their dominant relationship to the vertebral artery can provide important anatomical basis for elucidating the pathogenesis of upper cervical vertigo and establishing effective treatment plan.
关键词
颈性眩晕； /
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颈上神经节； /
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第2颈神经； /
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椎动脉； /
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解剖学因素
Key words
Cervical vertigo; /
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Superior cervical ganglion; /
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Second cervical nerve; /
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Vertebral artery /
Anatomical factor
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