目的：研究300名正常白族人指嵴纹数和t三叉，为医学、遗传学、人类学提供正常参数。
Objective: to study the finger ridge count and t triangle of 300 normal people of Bai Nationality, and to provide normal parameters for medicine, genetics and anthropology.
结果表明：鳃耙、鳃弓、鳃丝上皮细胞表面都有环形隆嵴、断续的短纹；
The results demonstrated that the external morphological structure of gill rakes, the gill arches and the gill filaments showed the presence of various features such as annular ridge and short lines.
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