<P> The opposite of oligohydramnios is polyhydramnios, an excess volume of amniotic fluid in the amniotic sac . </P> <P> A rare but very often fatal condition (fatal for both mother and child) connected with amniotic fluid is amniotic fluid embolism . </P> <P> Recent studies show that amniotic fluid contains a considerable quantity of stem cells . These amniotic stem cells are pluripotent and able to differentiate into various tissues, which may be useful for future human application . Some researchers have found that amniotic fluid is also a plentiful source of non-embryonic stem cells . These cells have demonstrated the ability to differentiate into a number of different cell - types, including brain, liver and bone . </P> <P> It is possible to conserve the stem cells extracted from amniotic fluid in private stem cells banks . Some private companies offer this service for a fee . </P>

Which is a function of the amniotic fluid