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Fingerprint Classification - Arch Patterns
- 3. PLAIN ARCH
- 4. Definition: A PLAIN ARCH is that type of pattern in which ridges enter upon one side, make a rise or a wave in the center and flow or tend to flow out upon the opposite side. Classified as “AA” PLAIN ARCH
- 5. ARCHES 1 2 3 4 5 6 7 8 9 10 11 12
- 11. TENTED ARCH
- 12. A TENTED ARCH is that type of pattern which possesses either an angle, an upthrust or two of the three basic characteristics of the loop. Classified as “TT” TENTED ARCH
- 13. TENTED ARCHES ANGLE TYPE
- 14. TT TENTED ARCH
- 15. UPTHRUST TYPE TENTED ARCHES
- 16. TT TENTED ARCH
- 17. TT TENTED ARCH
- 18. TENTED ARCHES LOOPING TYPE A “looping type” tented arch possesses 2 of the 3 characteristics of a loop pattern (core, delta, count across a looping ridge). D C
- 19. TT 01 TENTED ARCH
- 20. TT TENTED ARCH
- 21. TT TENTED ARCH
- 22. TT TENTED ARCH
- 23. TENTED ARCH TT
- 24. ARCH FREQUENCY
- 25. Questions?
Notes de l'éditeur
- RIDGES ENTER UPON ONE SIDE MAKE A RISE OR WAVE IN THE CENTER FLOW OR TEND TO FLOW OUT UPON THE OPPOSITE SIDE
- PLAIN ARCH ROAD TEST ANALOGY RIDE A BIKE ACROSS THE HILL WITHOUT GETTING A FLAT TIRE. RIDGES START AT BOTH SIDES AND SMOOTHLY RISE IN THE CENTER.
- SEVERAL EXAMPLES OF DIFFERENT PLAIN ARCHES.
- TENTED ARCH ANGULAR TYPE: FORMED BY TWO RIDGES MEETING AT AN ANGLE. ONE CONTINUOUS RIDGE CANNOT FORM AN ANGLE. ANGLES MUST BE 90 DEGREES OR LESS.