Parallel curving ridges of dermis that shape the overlying epidermis into friction ridges

A) are associated with thin skin.
B) improve the grip of the hands.
C) decrease friction on surfaces where they are located.
D) are caused by the pattern of the reticular layer of the dermis.
E) tend to make the surface smooth.

Friction Ridges

The raised portions of the epidermis on the fingers and thumbs, palms, soles, and toes, creating distinctive patterns used for identification in forensic analysis.

Reticular Layer

The deeper layer of the dermis in the skin, consisting of dense irregular connective tissue that provides strength and elasticity.

Epidermis

The outermost layer of skin, consisting of dead and living cells, that protects underlying tissues.