PATHOLOGY

Detailed explanation-1: -Friction ridge skin refers to the skin that is present along the lengths of the fingers, across the palmar surfaces of the hand, and on the soles of the feet. The skin contains raised ridges and recessed furrows that are used for gripping and other mechanical motions.

Detailed explanation-2: -Three types of gland contribute to latent fingermark residue: eccrine, sebaceous and apocrine sweat glands. The composition of latent fingermark residue is affected by the donor’s genetic make-up and in turn their physiology.

Detailed explanation-3: -Friction ridge-The raised portion of the skin of the print, consisting of one or more connected ridges.