Whorl
(2) or more deltas and at least one recurving ridge
What is a loop?
Made up of (1) Delta and at least one recurving ridge.
Plain Arch
Ridges enter one side of the pattern area, make a slight rise or wave in the center and flow out on the opposite side.
L
Loops have ONE delta
A
Arches have NO complete deltas
W
Whorls have TWO or more deltas
XX
Amputation
AU
Arch
SR
Complete Scar
LS
Left slant loop
RS
Right slant loop
UC
Unable to Classify
UP
Unable to print
WU
Whorl