> This was a heart warming story.

Indeed it is. However as often happens in media coverage some expressions
tend toward misunderstanding.

for example:

>I wonder what makes them think that the baby
> was "in a dry womb for 2 months" when at birth the hole in the  membranes had
> sealed and there was amniotic fluid there?
 
sounds like media speak without an informed  understanding. There needs to
be a clearer understanding of these matters by people and I find it
difficult to grasp that in the modern scientific age we live in with so much
information available that such misunderstandings  prevail.

>I thought that the placenta went on
> making amniotic fluid gradually all the time?

yes it does
To put it simply the cells of the amniotic membrane  keep on making fluid in
most cases. And the fetus  swallows amniotic fluid and  urine is excreted to
be come part of the amniotic fluid.
 
Try
Stables Dorothy. 1999, Physiology in child bearing with anatomy Related
Biosciences, London: Bailliere Tindall (page 143 Chapter 12)

Although Stables states "the exact source of amniotic fluid is not yet
known" the amniotic membrane (which is part of the placenta but not THE
placenta) seems to play a part. The chorion and the amnion  part of the
membrane have cells which are involved in the transfer of the fluid across
the cell membrane. it seems  prolactin and other hormones may play a part in
the regulation of the volume of amniotic fluid produced. "Water and solutes
can be transferred across the amnion and chorion by hydraulic, osmotic and
electochemical forces" "amniotic fluid is in a constant state of circulation
and renewal."

It is not uncommon for women whose membranes have ruptured very early to go
on producing  amniotic fluid for many more weeks or for the  break to seal
and the baby gets to be born and a more viable age.

Ruth

-------------------------------------
Ruth Cantrill
Griffith University
NATHAN QLD   4111

Email: [EMAIL PROTECTED]

 


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