颌面部的血液供给主要来源于颈外动脉;但由于其解剖变异甚大,因而对其组成传统的描述过于简略。Aaron 等对颈外动脉主要分支的研究提出15种类型。有时数支血管发源于同一主干;例如有20%舌动脉及面动脉共干,偶见舌动脉与甲状腺上动脉发源于同一主干。分支顺序亦有变异。Adachi 发现面动脉发源于枕动脉之前者占39.5%,其后者占45.7%,其 Maxillofacial blood supply mainly from the external carotid artery; but because of its large anatomical variations, so its composition of the traditional description is too simple. Aaron and other studies of the main branches of the external carotid artery propose 15 types. Sometimes branch of blood stems originate in the same trunk; for example, 20% Tongue artery and surface arteries dry, occasionally tongue artery and thyroid artery originate in the same trunk. Branching order also has variation. Adachi found that facial artery originated in the occipital artery before the person accounted for 39.5%, the latter accounted for 45.7%, which