coloured central portion of the eyeball composed of muscles whose dilation or contraction controls the opening of the pupil. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / QA International |
Taille de l’image : | 2172 px × 2229 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |