Nettle leaf stinging trichomes. Coloured scanning electron micrograph (SEM) of a stinging trichome (hair-like) on a leaf from of a stinging nettle (Urtica dioica). When brushed against,the stinging trichome breaks off and its tip penetrates the skin,injecting acetylcholine and histamine. These chemicals cause the painful and inflammatory response known as a nettle sting or rash | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Berrod, Thierry / Mona Lisa Production |
Bildgröße: | 3757 px × 2823 px |
Modell-Rechte: | nicht erforderlich |
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