skin
adding structural integrity adjusting body temperature allowing perspiration body temperature regulation controlling body temperature covering body covering bones creating form expire get over emotional bumps getting rid of toxins getting tan getting vitamin e from sun grow hair hold in blood holding in blood holding in flesh keeping guts in make grafts to treat burn victums protect against elements protect against world protect insides protect muscle from damage protectin protecting body protecting internal organs removing unwanted things from body repairing burns sensing location of things sensing pain sensing pressure sensing temperature sensing texture shedding dead cells spacing hair staying warm test pressure test temperature