Naked Science Forum
Life Sciences => Physiology & Medicine => Topic started by: JOHN SMIT on 18/05/2008 15:31:02
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JOHN SMIT asked the Naked Scientists:
Why do babies not cry inside the womb?
What do you think?
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Babies do not breath in the womb, they get their oxygen from their mother. Crying involves breathing.
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But they hiccup! Surely if they hiccup, they can cry.
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Indeed, babies in utero suck their thumbs, swallow and sleep, so why not cry?!
Chris
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Surely, babies do not breathe in the womb otherwise they will drown in all that fluid. The lungs start into action, surely, through the shock of birth!
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Babies cannot drown because they are supplied with oxygen via their umbilical cord, which plugs into the placenta and collects oxygen from the mother's bloodstream.
Babies do, however, make small breathing movements, although their lungs are not expanded. The birth process helps to ensure that any fluid that has been inhaled in utero is expelled by squeezing the baby hard on its way out!
Chris
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Babies yawn in the womb ...
(It gets bored about 15 seconds into the video).
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hi guys...i'm now 36 weeks along and we just had another ultrasound (long, complicated pregnancy...) and little spencer is actually practicing breathing. and crying. and hiccuping...according to my doctor, they do indeed cry, but you can't hear it because no air is passing over their little vocal cords. that's all for now, gotta go!
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Hugs You Kadie.. Nice to see you post Please take care .. of you and little Spencer.. Nice name! YAYYYYYYYYYYYYY!
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hi guys...i'm now 36 weeks along and we just had another ultrasound (long, complicated pregnancy...) and little spencer is actually practicing breathing. and crying. and hiccuping...according to my doctor, they do indeed cry, but you can't hear it because no air is passing over their little vocal cords. that's all for now, gotta go!
That makes 2 of you - because my wife is at the same stage. One month to go!
Chris
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That makes 2 of you - because my wife is at the same stage. One month to go!
Chris
Awww...tiny geniuses! How cute! :)
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Well I wouldn't got that far!
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hi guys...i'm now 36 weeks along and we just had another ultrasound (long, complicated pregnancy...) and little spencer is actually practicing breathing. and crying. and hiccuping...according to my doctor, they do indeed cry, but you can't hear it because no air is passing over their little vocal cords. that's all for now, gotta go!
That makes 2 of you - because my wife is at the same stage. One month to go!
Chris
Congratulations Chris.. Is this Your first? Babies are so exciting! YAYYYYYYY! Congratulations all four of you... Daddies included!
Not long left.. 26th is comming right up! What day is she due??