指纹,指的是手指肚儿上的皮肤纹理,实际上就是表皮外的真皮突起的纹线。虽然指纹人人皆有,但各不相同。伸出你的手,仔细观察,就可以发现小小的指纹也分好几种类型,如:弓型纹(包括弧形纹和帐形纹)、箕型纹(包括正箕和反箕)、斗型纹(包括环形、螺形、杂形等)。弓型纹由弓形平行纹 Fingerprints, refers to the skin texture on the finger belly, in fact, is the outer dermal leather ridge lines. Although fingerprinting is available to all, it varies. Extend your hand, careful observation, you can find small fingerprints are also divided into several types, such as: arch bow (including the arc and the account pattern), Kei type pattern (including the front and back anti-Kei) , Bucket pattern (including the ring, screw, miscellaneous, etc.). Bow pattern by the bow parallel pattern