鼻衄可发生于鼻腔的任何部位,但以鼻中隔前下部的 Littel 氏易出血区尤为多见,占鼻衄的90%以上。鼻中隔的动脉可分为二大来源:Ⅰ.鼻内的动脉,系来源自筛前动脉。筛后动脉和蝶腭动脉。Ⅱ.鼻外动脉,来源自面动脉。鼻出血时,鼻前孔皮肤与粘膜移行处的血管怒张,可能和来源于面动脉的鼻中隔支有关。源自面动脉的鼻中隔支的解剖,对耳鼻喉学科和颌面外科具有重要意义,但是,这方面的研究尚未在解剖学和耳鼻喉学科的专著中详细记载。为此,我们着重解剖观察了国人面动脉终止部位 Epistaxis can occur in any part of the nasal cavity, but in the lower part of the nasal septum Littel hemorrhage is particularly prevalent, accounting for more than 90% of epistaxis. Nasal septum arteries can be divided into two major sources: I. intranasal arteries, derived from the anterior ethmoid artery. After the screen artery and sphenopalatine artery. Ⅱ. Extranasal artery, derived from the facial artery. Epistaxis, the anterior nasal orifice skin and mucous membrane at the migration of vascular engorgement may be derived from facial artery nasal septum. Anatomy of the nasal septum originating from the facial artery is of great importance for otolaryngology and maxillofacial surgery, but studies in this area have not been well documented in monographs on anatomy and otolaryngology. To this end, we focused on the anatomic observation of the termination of human facial artery