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

6. AA
PLAIN ARCH

7. AA
PLAIN ARCH

8. AA
PLAIN ARCH

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
TENTED
40%
PLAIN
60%

25. Questions?