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目的 了解汉族中青年外鼻鼻下部的解剖形态，为下鼻部整形手术提供有关参考。方法 对汉族２００ 名１９ ～３０ 岁中青年外鼻鼻下部进行测量，男、女各１００ 名，测量项目：鼻翼宽、鼻深、鼻小柱宽和高、鼻尖宽和高、鼻基底鼻尖角、鼻孔宽和高、鼻翼鼻小柱角、鼻孔上部最小角、鼻翼厚度和突出距共１３ 个数据，观察鼻孔、鼻翼附着外侧缘形态，比较测量值的正常范围、变异系数、分布频数，并作统计分析。结果 发现鼻翼宽、鼻深、鼻小柱宽、鼻尖宽和高、鼻孔宽和高、鼻孔上部最小角、鼻翼突出距的测量值男女之间差异有显著意义Ｐ＜ ０ ．０１ ，鼻翼厚度差异较有显著意义，Ｐ＜ ０ ．０５ ，对临床有意义。男性鼻下部宽、鼻深等４ 组测量值分布集中，女性鼻深、鼻小柱宽等８ 组测量值分布集中。鼻孔外形可描述为扇形和扇形一边为底的三角形相连而成。结论 所得参数，对临床工作有指导意义
Objective To understand the anatomy of nasal and nasal lower part of middle-aged and young people in Han nationality and to provide reference for lower nasal plastic surgery. Methods A total of 200 middle-aged and young people were enrolled in this study. They were 100 males and 100 females. The measurement items included wide nose and nose width, wide and high nasal column, wide and high nasal tip, nasal apical nasal angle , Nostrils width and height, nasolabial columella angle, the minimum angle of the upper part of the nostril, the thickness of the alar and the protruding distance were measured. The nostrils of the nostrils and the alar attachment were observed. The normal range, coefficient of variation and distribution frequency of the measured values were compared. For statistical analysis. The results showed that there was a significant difference between men and women in the measurement of nose width, nasal depth, wide columella, wide and high nasal tip, wide and high nostril, minimum angle of upper nostril and protrusion of nostril. 01, a significant difference in the thickness of the nose, P <0. 05, clinically meaningful. The width of the nasal lower part of the nose, nasal depth and other four sets of measured values are concentrated, female nasal deep, wide nose columers measured concentration distribution of 8 groups. The shape of the nostrils can be described as a fan-shaped and fan-shaped triangle connected to the bottom. Conclusions The parameters obtained are of clinical significance