How do babies breathe in the womb?

flobadob | 00:41 Thu 28th Jan 2010 | Animals & Nature

6 Answers

What is the story with babies in the womb?How can they breathe if they are surrounded by fluid?

bleedin' cheeky mouse

what a great story and a lucky dog

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jackthehat

They receive oxygen from the mother's blood across the placenta which diffuses into their own blood supply...........

flobadob

Question Author

Do they have to keep their mouth shut so that they don't drown in there?

hc4361

No, the lungs are full of liquid, so nothing can go down.

jackthehat

They swallow the amniotic fluid (which accounts for the regular bouts of hiccoughs) but they do not need their lungs to breathe as their oxygen requirements are fulfilled via the mother.

society

I guess babies are like fishes then, except their gills are invisible.

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