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 several hair follicles containing hair (green) that grows from a bulbous root (black, one at lower right). Also seen here are the erector muscles (red-purple) and sebaceous glands (round, white-pink). At the base of the dermis is a layer of fat bubbles (white-pink). Magnification: x36 when printed at 10 centimetres across.