Ultrasound scan of a foetus at 10 weeks. At this stage internal sexual differentiation takes place but external differences are not yet obvious. On average, foetuses measure 3 centimetres in length at 10 weeks of pregnancy. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / RAJAAISYA |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |