A Study of Finger Prints in Normal Korean People / 대한피부과학회지

ABSTRACT

The skin in the palmar and plantar surface of the human hand and foot is corrugated with narrow ridges; the ridges form definite local designs o the terminal segments of digits and in consistant sites on the palm and sole. Dermatoglyphics collectively means the features of epidermal ridges and the study of these ridges as well as the pattems formed by them, and is useful in personal identification, twin identification, human biology, syudies of genetics and diagnosis of some diseases. Two thougand normal Koreans(1,000 males and 1,000 females) were examined forpattem type of finger prints to establish the dermatoglyphics of the Korean perple, and the following results were obtained. Men had whorls 49.89%, ulnar loops 44.53%, radial loops 3.10%, arches 2.49%; women had whorls 43.42%, ulnar loops 51.16% radial loops 2.24%, arches 3.20%. On the average, whorls were present 46.65%, ulnar loops 47.83%, radial loops. 2.68% and arches 2.84. Pattem intensity (the number of triadii per individual) was 14.381. Of all the men and women examined, 16.65% and 14.89% respectively had pattems of the same type(whorls, loops, arches) on all ten fingers. Of those men. 10.55% had only whorls, 6.0% only loops. In my test group, 15,78% had 10 pattems of the same type, 16.01% had 9 pattems of the same type and 20.57% had 9 pattems of the same type. Only 8.17% bore pattems of all main 3 types. Monomorphic hands of which all 5 fingers bore the same pattem type were 27.79% of Rt hands and 26.93% of Lt hands. In compatison of couplets composed of homologous fingers, the approximate incidences of symmetry in single figers ranged from 73% to 82%. Symmetry in individuals was complete in 32.99% and the diminishing frequencies of unlike pattem types on one, two, three, four and five digital couplets were, respectively:37.29%, 21.02%, 7.57%, 1.07% and 0.05%