Head louse nits, SEM

Numéro d’image : 12528538
Head louse nits, SEM
Head louse nits. Coloured scanning electron micrograph (SEM) of three nits, or eggs, of the human head louse (Pediculus humanus capitis) attached to a human hairs. The lid of the nits (top) are perforated with air holes that allow the developing nymphs to breathe. Adult female head lice lay between 80 to 100 eggs during their life. These hatch after a week and develop rapidly, with successive generations arising every three weeks. Adults live in the hair on the head and suck blood from the scalp, causing intense itching. The itching provokes scratching, which can lead to scalp inflammation, or dermatitis. Treatment is with medicated shampoo. Magnification: x40 when printed 10 centimetres wide.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 3200 px × 4000 px
Model Release : Non requis
Property Release : Non requis
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  • All moral rights asserted. Recolouring or alteration of the image is prohibited without permission.

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