Forobtaining the bets result,the height of maxillary-ethmoid and the height from the up-edgeof maxillary-ethmoid plate to the roof of posterior ethmoid were measured.

• 鼻前棘至后筛顶后缘的距离及角度，观察中鼻甲的走行及附着，筛骨水平板的形态及后筛窦的分度及变异，为临床手术提供了一定的解剖学依据。