Ten week old foetus in its amniotic sac. At this stage the foetus measures about 4 centimetres in length. Foetal movements begin at this time,but are not usually felt by the mother. Internal sexual differentiation takes place but external differences are not yet obvious | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bevilacqua, R. / CNRI |
Taille de l’image : | 3460 px × 5150 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |