Root of hair. Historical artwork of the root of a human hair (brown). Hair consists of dead cells containing keratin,a fibrous protein. The root of each hair is embedded in a skin follicle (pink). The root is surrounded by a bulb (globular,brown),which contains living tissue and supplies the hair with keratin. Hair is formed when new cells produced in the root (lower centre) push up older cells,which then become keratinised | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Terry, Sheila |
Taille de l’image : | 2802 px × 3500 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |