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外颈动脉(external carotid artery)源自于总颈动脉,为头颈部的一条重要动脉。总颈动脉有内颈动脉及外颈动脉两条分支,外颈动脉负责供应头颈部的血流[1]。
外颈动脉源自于甲状软骨上缘,向前上行,之后向后上行至下颚骨颈部后方,并在腮腺处分为浅颞动脉及上颌动脉,之后管径急速缩小。
外颈动脉的分支包含:
外颈动脉的终末分支共有两条:
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