Polarised light microscopy of a oblique section of the hoof of a horse (Equus ferus caballus). Hooves are composed of layers of keratin (the same substance as forms hair and nails). In addition to hair,most land mammals produce a type of hard keratin,known as horny keratin,in the form of nails,hooves,claws,horns and quills. The ultrastructure of hoof resembles that of hair. Magnification: x68 at 10cm wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lowry, Steve |
Taille de l’image : | 3451 px × 2598 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |