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| リンク元 | 「頚動脈閉塞症」「carotid artery insufficiency syndrome」 | 
| 関連記事 | 「症候群」「頚動脈」「不全」「不全症」「群」 | 
The sixth cervical vertebra is a critical boundary of the root of the neck. To enter the neck from the chest, the vascular structures pass through a ringlike opening bounded by the scalene muscles laterally, the sternum and first ribs anteriorly, and the vertebrae(notably C6)
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