extensions of dermis up into the epidermis that is responsible for fingerprints is called
Rows of papillae protruding from the dermis into the epidermis form ridges that create patterns on the skin of the hands, feet, and body. These papillary ridges on the fingertips are responsible for fingerprints.These ridges develop sometime before birth.he dermal papillae are small, nipple-like protrusions of the dermis that reach into the epidermis, bringing food and oxygen to the lower layers of epidermal cells. In additio â¦ n, a papilla nourishes every hair follicle.