摘要
按随机抽样原则挑选598名恩施土家族人观测了他们的耳廓形态。其耳廓大小适中,大部分为中型或中长中宽型;容貌耳长和容貌耳宽之比约为2:1;一般具有达尔文结(67.73%),以圆结型居多;中青年耳垂主要呈方形或三角形,老年常为圆形或三角形,耳廓外展度多在30°～60°之间;耳廓各径性别差显著,一般随年龄而递增,并出现不同程度差异性。聚类分析表明,恩施土家人耳廓与南方民族相似,与北方民族相距较远。
The auricles of people of Tujia nationality in Enshi were observed and measured in 304 males and 294 females determined according to the principle of random sampling.Their auricles were intermediate in size and the type of the auricles mainly belonged to medium.There was a Darwins tubercle on the auricles in most people(67.73%)and the tubercles were usually circu- lar.The earlobes were chiefly square or triangle in shape.There was an angle from 30°to 60° between the auricle and the skin of the temporal region in most people.The Sex difference of the measurement values was obvious.The length and breadth of the auricles increased progres- sively with age.There was a difference in their measured values between the group of young people or middle aged people and those of old people.In view of the cluster graph of kinship matrix for 11 groups of other nationalities,the morphological features of the auricles of Tujia people were basically similar to southern nationality and there was more difference in the char- acteristics of the auricles between Tujia people and northern nationality.
关键词
耳廓
形态特征
恩施土家族
MeSH ear
external
nationality classification
