Endoscopic image of the human foetus in vivo,after 15 weeks,showing the umbilical cord entering the foetal navel. The umbilicus supports 2 arteries carrying deoxygenated blood from the foetus,and 1 vein supplying oxygenated blood. The endoscope,a series of lenses and a fibre- optic light source,is inserted through the cervix (the neck of the womb) and manipulated until a "window" into the amniotic sac is found (ie an area where the wall is thinner) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Tsiaras, Alexander |
Bildgröße: | 5080 px × 3628 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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