The head of a human embryo at about 7 weeks,showing the retina of the eye (a development of optic vesicles which appear on the side of the head at about 4 weeks),& the developing cranial bones. The brain is undergoing radical divisions: the void at the base of the head has yet to be filled by further growth; another fold reduces it to a small cavity - the 4th ventricle (found under the cerebellum) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Edelmann |
Taille de l’image : | 5079 px × 3443 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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