Budgerigar throat. Coloured scanning electron micrograph (SEM) of the oesophagus of a budgerigar (Melopsittacus undulatus). The oesophagus in most birds is lined with layers of keratinocytes (orange),cells that produce keratin (a tough,fibrous protein). The budgerigar is a highly sociable type of parrot. Magnification: x500 when printed 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Gschmeissner, Steve |
Taille de l’image : | 5012 px × 3543 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |