Black head. Coloured scanning electron micrograph (SEM) of hairs emerging from a blockage in the skin. The material which caused the obstruction,the dead cells and debris associated with a pimple or blackhead,is attached to the emerging hair. Blackheads and pimples form when a sebaceous gland becomes blocked with a plug of dried sebum (an oily excretion). Magnification: x180 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 3772 px × 2664 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |