广西苗族男性青少年学生手的皮纹学研究

HAND DERMATOGLYPHICS OF MALE TEEN AGED MIAO NATIONALITY STUDENTS

对广西融水县父母均是苗族，表型正常的男性青少年学生进行了手的皮纹学研究。结果见指端纹型以斗型最多，占５３．１０％；尺箕次之，占４３．３０％；桡箕较少，占２．４５％；弓型最少，仅占１．１５％。总指纹嵴计数平均为１４６．４７条，ａ－ｂ纹嵴计数两手平均为３７．９５条。ａｔｄ角两手平均为４１．６４°。ｔ比值两手平均为１６．９７％。主线末端终止区，左手主线多起向低数字区，右手主线多走向高数字区。掌部真实花纹出现率依次为第Ⅳ指间区７６．７５％；小鱼际区１４．７５％；第Ⅲ指间区１４．００％；第Ⅱ指间区３．００％；大鱼际／第Ⅰ指间区１．５０％。掌褶类型出现率依次为常见型７２．５０％；过渡Ⅰ型１２．７５％；过渡Ⅱ型７．００％；通贯型６．５０％；悉尼型１．２５％。

Hand dermatoglyphics were studied in teen aged students who were normal in phenotype and their parents were all of the miao nationality of Rongshui county,Guangxi The percentages of the fingertip patterns were as follows:in the whorl 53 1%,in the ulnar loop 43 30%,in the radial loop 2 45%,and in the arch 1 15% The average of the total finger ridge counts (TFRC) was 145 47 The average of the a b ridge counts in all hands was 37 95.The average of the atd angles in all hands was 41 64°。The average of the t tposition values in all hands was 16 97% The palmar main lines of the left hands followed the small number areas,while the palmar main lines of the right hands followed the large number areas The percentages of the palmar pattern were as follows:in the fourth interdigital area 76 75%,in the hypothenar area 14 75%,in the third interdigital area 14 00%,in the second interdigital area 3 00%,in the thenar/first interdigital area 1 50% The percentages of the palmar flexion crease were as follows:in the normal type 72 50%,in the transitional type Ⅰ 12 75%,in the transitional type Ⅱ 7 00%,in the single palmar flexion crease 6 50%,and in the sydney line 1 25%