In early foetal development differentiation of epidermal ridges
The term dermatoglyphics was coined by Harold Cummins in 1926, which is used for the studies of epidermal ridges
on the nonhairy part of palm, fingers, toes, and soles.
Embryologic development of epidermal ridges
and their configurations.
Histologically, it consists of multiple papilliferous epidermal ridges
covered and bridged by abundant amount of keratin.
Background: Dermatoglyphics is the scientific term used for study of epidermal ridges
and their configuration on the palmer region of hand and planter region of foot and toes.
Splinter hemorrhages are due to trauma together with increased vascularity and fragility of the nail bed dermis.13 Anatomically nail bed has longitudinal ridges and small hemorrhages from dermis can only pool longitudinally between various epidermal ridges
. These splinter hemorrhages are dragged distally along with the outgrowth of the nail plate.
A study in the January 30 issue of Science helps crack the case of fingerprints' real job: Epidermal ridges
, fingerprints' professional name, likely serve as filters to help in the efficient detection of fine textures.
In this selected area of the prints, epidermal ridges
of both males and females were counted carefully within a square of 5mm x 5mm drawn on a transparent film fixed to the lens (8).
The difference in the number of epidermal ridges
between triradius A and triradius B of the right hand did not have statistical significance (p= 0.277; p > 0.05).
Quantitative differences in morphogenesis of human epidermal ridges
. In: Dermatoglyphics--Fifty Years Later.
The study of epidermal ridges
, patterns formed by them in palmar and plantar regions and flexion creases is known as dermatoglyphics.
Dermatoglyphics is the scientific study of epidermal ridges
and their configuration on palmar and plantar region.