Hi,
There is a part inside the female uterus which devlops during pregnancy known as placenta that derives nourishment from the mother and hence supplies nourishment to the baby by the cord know as umblical cord.
Now at times the cord rolls around the babies neck and this can be considered a little high risk delivery and the doctor would be cautious during your delivery that umblical cord should not stretch much as that can cause compression of neck of fetus which can be dangerous for the fetus ...
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