skin crease

• wrinkleSurface fold or crease
• foldBend onto itself
• furrowNarrow trench in earth
• lineContinuous mark or queue
• ridgeNarrow raised strip

dermis · palm · knuckle · elbow · joint · flexion · crow's feet · laugh lines · dimple · pucker · texture · age · weathered · soft · supple · crinkle · groove · pleat