Dermal Papillae
Definition
Peg-like projections of the dermis into the epidermis. Their geometry sets the ridge pattern in stone before birth. Damage limited to the epidermis heals without scar; damage into the dermis leaves a permanent scar that becomes part of the print.
Related terms
- ACE-V
- Analysis, Comparison, Evaluation, Verification: the four-stage method for latent print examination used by accredited forensic fingerprint laboratories. Analysis examines the latent in...
- Adermatoglyphia
- Rare genetic disorder, sometimes called immigration delay disease, in which a person is born without friction ridges. The standard counter-example to the...
- Core
- The approximate centre of a fingerprint pattern. In a loop, it is identified as the innermost recurving ridge's peak or the tip...
- Delta
- Triangular ridge formation at the point where parallel ridge flows diverge. Arches have 0 deltas, loops have 1, whorls have 2 or...
- Friction Ridge
- Raised epidermal ridge on the palmar surface of fingers, palms and soles, formed during foetal life from the underlying dermal papillae. The...
- Henry Classification
- Numeric filing system built at the Calcutta Fingerprint Bureau in 1897. Assigns a numerator and denominator from whorls on even and odd...
- Minutiae (Galton Points)
- Local ridge features used for individual identification. The classical set is ridge ending, bifurcation, dot, island or lake, bridge, hook or spur,...
Explained in
- Fingerprints: History, Characteristics, Types and ClassificationPeg-like projections of the dermis into the epidermis. Their geometry sets the ridge pattern in stone before birth. Damage limited to the epidermis heals witho...