三叉神经的上颌神经痛发病率较高,由于上颌神经从颅腔至面部行程复杂,途径翼腭窝、眶下裂、眶下沟、眶下管等,以致使上颌神经颅外段手术切断术的入路较为困难.以往对上颌神经颅外走行的研究报道资料不足.因此,本文对上颌神经从圆孔至眶下孔的走行所经过的骨性结构,进行了应用解剖学观察和测量,为上颌神经痛手术切断术提供形态学基础.1 材料和方法选用25例成人颅骨(男17,女8),其中20个为矢 The incidence of maxillary neuralgia in the trigeminal nerve is high. Due to the complexity of maxillary nerve travel from cranial cavity to facial, the pterygopalatine fossa, infraorbital fissure, infraorbital fissure, orbital foramen, etc. cause the extracranial segment of the maxillary nerve to be surgically excised The approach is more difficult.Previous research on the extracranial nerve of the maxillary nerve reported insufficient information.Therefore, this article on the maxillary nerve from the round hole to the infraorbital foramen through the bony structure, the application of anatomical observation and measurement of Morphology of maxillary neuralgia was provided by surgical resection.1 Materials and Methods Twenty-five adult skulls (male 17, female 8) were selected, of which 20 were vector