Acne. Artwork showing the formation of a pimple. A hair shaft and its associated sebaceous gland are seen in the skin. The sebaceous gland produces sebum,an oily substance that waterproofs the hair. If the hair shaft becomes blocked (centre),sebum builds up in the shaft and any bacteria present multiply,which causes inflammation and leads to a pimple (bottom) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gardiner, Peter |
Bildgröße: | 3128 px × 5587 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |