外頸動脈（external carotid artery）源自於總頸動脈，為頭頸部的一條重要動脈。總頸動脈有內頸動脈及外頸動脈兩條分支，外頸動脈負責供應頭頸部的血流[1]。
解剖
外頸動脈源自於甲狀軟骨上緣，向前上行，之後向後上行至下顎骨頸部後方，並在腮腺處分為淺顳動脈及上頜動脈，之後管徑急速縮小。
功能
外頸動脈的分支包含：
- In the carotid triangle:[2]
- Superior thyroid artery, arising from its anterior aspect
- Ascending pharyngeal artery - arising from medial, or deep, aspect
- Lingual artery - arising from its anterior aspect
- Facial artery - arise from its anterior aspect
- Occipital artery - arising from its posterior aspect
- Posterior auricular artery - arising from posterior aspect
外頸動脈的終末分支共有兩條：
其他圖像
-
Magnetic Resonance Angiography
參考文獻
外部連結
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