Arches
In an arch, the ridges on the fingerprint run straight across the print without redoubling back the way a loop or whorl does. There are two types of arches:
Tented Arch The arch is very distinctive and thrusts upward with lines underneath arch appearing curved |
Plain Arch A slight arch appears in the middle of the pattern with underlying lines remaining consistently straight |
Loops
Loops are ridges which turn or loop back, but don't completely twist in a full circle. Loops are classified by the direction which they flow toward, the radius or the ulna.
Radial Loop This loop flows toward the radius, considering that this is a right-handed print |
Ulnar Loop The loop shown above flows left in the direction of a right-handed ulna |
Whorls
In a whorl, the ridges on the print turn completely to make at least one full circuit. This means that at least one complete oval or circle shape will be easily visible.
Double Loop Whorl Two separately distinct sets of loops which individually make their own whorls |
Plain Whorl The simplest and most common whorl. Plain whorls curve into only one full circular shape |
Central Pocket Whorl At least one ridge curves around to make more than one full circuit |
Accidental Whorl This distinct set of ridges reveals a plain arch with two additional types of patterns that make a full circuit |
excellent organization, good set of images !!
ReplyDeleteYour layout for this post is awesome and I really like how there's a picture for every type of pattern.
ReplyDelete