DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY DR JEREMY BURGESS / SCIENCE PHOTO LIBRARY
Scanning electron micrograph (SEM) of a clean human hair. Hair is a fibrous protein (keratin) which develops out of a tubular follicle located in the epidermis of the skin. Magnification: X 900 at 10x8-inch size, X 130 at 35 mm size.
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