Skin section. Semi-polarised light micrograph of a vertical section through human skin. The outer epidermis is the thin layer across top, with the dermis layer beneath it. The main feature here is two hair follicles containing hair (green) that grows from a bulbous root (not seen). Also seen here are the erector muscles (solid pink, strand seen at centre) and sebaceous glands (round, white-pink, two near centre). Magnification: x100 when printed at 10 centimetres high.