The word
dermatoglyphics comes from two Greek words (derma, skin and glyphe,
carve) and refers to the friction ridge minutiae which appear on the palms of
the hands and soles of the feet. Characteristically, hair does not grow
from this area. The ridging formations serve well to enhance contact, an
area of multiple nerve endings (Dermal Papillae) and aids in the prevention of
slippage. All studies of the dermal ridge arrangements including
Genetics, Anthropology and Egyptology are classified under the term
dermatoglyphics.
The ridge
formations of the skin of an individual begin to appear during the third and
fourth month of fetal development. After death, decomposition of the skin
is last to occur in the area of the dermatoglyphics configuration. There
have been many instances in which the only identifiable part of a deceased
person was the friction ridge formations.
There is the case
of the Egyptian mummified hand (over 2,000 years old) presented in the book
entitled, The Fingerprint Story by Gerald Lambourne, QPM who was the Commander
of the Fingerprint Department, New Scotland Yard 1975-1980. A
photograph appears in the book of a fingerprint from the left little finger of
an Egyptian mummy.
The ridge detail is
intact displaying an ulnar loop pattern.
In reference to the
frequency of patterns over the ten digits, ulnar loops maintain the
highest frequency of about 60%. This is especially true for the little
finger in which the ulnar loop is its dominant pattern. In terms of the
evolution of fingerprint patterns, the ulnar loop resides midway between the
whorl (the first pattern to appear on the person of individuals) and the arch
(that which was last).