DAVID SCHARF / SCIENCE PHOTO LIBRARY DAVID SCHARF / SCIENCE PHOTO LIBRARY
Human skin. Coloured scanning electron micrograph (SEM) of human skin, showing flaking skin cells and hairs in their follicles. The flaking cells are flat, keratinised, dead cells that are continuously sloughed off and replaced with new cells from below. Magnification: x90, when printed 10 centimetres wide.
Model release not required. Property release not required.