The human foetus during the 12th week,showing the umbilical cord spiralling above the body of the foetus. The umbilical cord carries arteries & veins that provide a 2 way exchange of nourishment (ie oxygen) & waste products between the foetal & maternal circulation. The cord is joined to the foetus at the abdomen (the navel) and to the uterine membrane at the placenta,which forms the interface between the 2 circulations. The placenta does not act merely as a filter for the foetus,but as a multiple organ system: it also supports the mother's body functions by synthesising a range of hormones (in a similar way as the pituitary gland does) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Edelmann |
Taille de l’image : | 3984 px × 2686 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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