[An analyses of plantar dermatoglyphic main line trend of Tibetans in suburbs of Lhasa].

Collected plantar prints with Ninhygrine-gourmet powder, traced main line trend with steromicroscope, the plantar dermatoglyphic main line trend of 250 sample Tibetans in good health in suburbs of Lhasa were analysed. They are composed of 125 males and 125 females. The results are as followes: Main line A of Tibetans trends chiefly towards area 1, and next towards area 7; main line B terminates mainly in area 1 and area 7 as well; main line C terminates mainly in area 1 and area 9; the frequency of main line D is the highest in area 1. The main line E chiefly towards area 13. Absence of triradius P is more, the frequency of main line pd termaiates higher (area 13 and area 11) than of main line Pf (area. 7). This paper compared the difference between sexes, nationalities and races. The results showed that the plantar main line trend of Tibetans have their own feature, and showed character of the Mongoloid.