在30具(男23.女7)共60例成人尸体上观察与测量了咬肌的动脉与神经来源、咬肌神经的分支以及肌内构筑、咬肌由上颌动脉咬肌支和邻近动脉肌支供血,面动脉与面横动脉的咬肌支为其主要营养动脉.咬肌神经在肌内可分成单干和双干两型,前者居多,两型中其肌内分支间均有吻合.就结果对有关颌面外科应用问题进行了探讨. The masseter arteries and nerves, branches and intramuscular structures of masseter muscle were observed and measured on 60 adult cadavers of 30 (23 males and 7 females). The masseter muscle consisted of the masseter of the maxillary artery and the adjacent artery Branch blood supply, facial artery and facial transverse artery of the masseter muscle as its main nutritional artery masseter nerve in the muscle can be divided into single and double dry two types, the former mostly in both types of its intramuscular branches are consistent. Results The application of maxillofacial surgery was discussed.