Endoscopic image of the human foetus in vivo,after 14 weeks,showing the umbilical cord,convoluted and pressing against the foetal stomach.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 (which surrounds the embryo) is found (ie an area of the wall that is thinner) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Tsiaras, Alexander |
Bildgröße: | 3627 px × 5079 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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