Umbilical cord - Definition

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The umbilical cord is a sort of tube permitting exchanges between the organism of a pregnant woman and that of her fetus, via the placenta. With a rich supply of blood and containing two arteries and a single vein, the umbilical cord transmits oxygenated blood and the nutrients necessary for the development of the fetus. At childbirth, it is customary to cut the umbilical cord in order to completely separate the baby from the placenta. The resulting scar forms the child's navel.