表皮内汗腺导管螺旋走行的形态学特征  

Morphological Observation into Sweat Gland Ducts Spirally Piercing through Epidermis

作　　者：王有民[1] 解晓慧[1] 曹吉明 李彦霖 梁娜[1] 柳菁莹 WANG Youmin;XIE Xiaohui;CAO Jiming;LI Yanlin;LIANG Na;LIU Jingying(Department of Information Technology,Shaanxi Police College,Xi’an 710021,China)

机构地区：[1]陕西警官职业学院信息技术系,西安710021

出　　处：《刑事技术》2020年第3期270-273,I0006,共5页Forensic Science and Technology

基　　金：陕西省教育厅专项科研计划项目(17JK0956);陕西警官职业学院2018年院级重点科研项目(YJKY1801)。

摘　　要：目的研究外泌汗腺导管在表皮内螺旋走行的形态学特征,测量分析相关数据并探讨影响因素。方法分别取福尔马林固定过的两名男性青壮年尸体左、右手的拇指、食指与中指末节指腹共6块检材,制作HE染色常规切片300余张,经光学显微镜筛选16张进行数码显微镜观察、测量分析导管螺旋走行的相关数据。结果汗腺导管在表皮内的穿行方式均为不规则螺旋形,其螺旋的纵向总长度平均为613.50μm;螺旋平均直径为61.65μm,大多在51.15~71.45μm之间;螺旋圈数多在7~9圈之间;螺旋螺距的平均值为81.08μm,大多在65.33~96.07μm之间;汗腺导管的管径平均为16.20μm,大多在12.21~20.25μm之间。结论表皮内汗腺导管螺旋走行有一定规律,其管径、螺长、螺径、圈数、螺距均在一定范围内变动,且在一定程度上影响着汗孔的位置与大小变化,继而影响着指纹三级特征的研究与鉴定的基础理论。Objective To observe the morphological features of sweat gland ducts on their spirals piercing through the epidermis with the relevant data being measured and analyzed plus the infl uencing factors discussed.Methods Six samples of finger pulp were respectively cut from the thumb,index or middle fi nger of the left and/or right hands of two young-ormiddle-aged(uncertain of their exact age)male cadavers that were fi xed with formalin solution.More than 300 HE-stained sections were made from the cut fi nger pulp,with 16 eligible ones selected through optical microscope for observation under digital microscope to measure those spiral-stretching sweat gland ducts and analysis of the obtained data.Results The passage of sweat gland ducts in epidermis is of the size-irregular spiral whose average measurement is of 613.50μm in length and the 61.65μm in diameter ranging mostly among 51.15~71.45μm.The spiral goes between 7~9 cycles,with averaging 81.08μm of its pitch ranging across 65.33~96.07μm.The average diameter of the sweat gland duct is 16.20μm,most falling into 12.2~20.25μm.Conclusions The spiral of sweat gland duct in epidermis stretches out with certain regularity,thereby resulting in its length,diameter,number of circles and pitch all changing within a certain range together with the duct’s diameter.To some extent,the characteristic spiral affects the relevant sweat pore on its position and size,potential to underlie the research and identifi cation of the 3rd level characteristics of fi ngerprint.

关 键 词：指纹学 汗腺导管 螺旋 表皮 形态学 特征 

分 类 号：DF794.1[政治法律—诉讼法学]