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
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.