It companied with carotid canal and hypoglossal canal outside hole, and formed triangle that posterior groups nerve and jugular buld existed in.
与颈动脉管外口、舌下神经管外口形成了三角形，出颅的后组脑神经及颈静脉球位于三角形内。
It companied with carotid canal and hypoglossal canal outside hole, and formed triangle that posterior groups nerve and jugular buld existed in.
与颈动脉管外口、舌下神经管外口形成了三角形，出颅的后组脑神经及颈静脉球位于三角形内。
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