Hair follicle,SEM

Numéro d’image : 11876532
Hair follicle,SEM
Hair follicle. Coloured scanning electron micrograph (SEM) of a longitudinal section through a freeze-fractured hair follicle. The skin surface (not seen) is towards top. The hair shaft (purple) ascends through the skin to top centre. The hair shaft grows from a structure called a hair follicle. Several associated structures are seen,including a sebaceous gland (honeycombed,light brown,lower frame) that produces the sebum that oils the hair and skin. The compact structures (brown and purple,top left) are parts of the arrector pili muscle that allows the hair to stand on end. Hair consists of the fibrous protein keratin. Magnification: x200 at 6x7cm size
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 3956 px × 4500 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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