制作颅脑标本时,在1脑标本见其双侧上颌神经均穿蝶窦外侧壁入窦,在窦腔内贴窦外侧壁走行一段距离后,再穿窦壁出窦(附图)。双侧窦内段神经表面仅覆以薄层窦粘膜。此种走行异常,当蝶窦感染化脓时,可能累及神经,亦可 In the production of brain specimens, in one brain specimen see the bilateral maxillary nerve through the lateral wall of the sphenoid sinus into the sinuses in the sinus wall posted a distance after the lateral wall, and then through the sinus wall sinus (photo). Bilateral sinus nerve surface only covered with thin layer of sinus mucosa. Such walking abnormalities, when purulent sphenoid sinus infection, may involve nerves can be