They don't breathe with their lungs, their oxygen is supplied by displacement through the placenta:in the oxygen rich blood from the umbilical cord.
2006-12-14 19:14:23
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answer #1
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answered by Star 5
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Babies in womb don't neet oxygen from air as it is already supplied via the blood coming from mother via the umbilical cord. As one can imagine its almost impossible in a natural way to inhale air when there is liquid all around you. Neonates breath first only when they are out of womb and the placenta is cut. They need to be put in a certain position so that their first breath removes all the liquid entraped in their air passage. Failing to do so can lead to asthmatic problems in later stages of life...You can have better info on medlineplus.gov
2006-12-14 21:26:24
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answer #2
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answered by Anonymous
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Babies dont take breath in their mother's womb. They actually dont need to take breath. They take their first breath only after delivery. In the womb they directly get oxygenated blood form mother via umbilical cord , which no longer exists after the delivery.
2006-12-14 19:20:23
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answer #3
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answered by drjb 2
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they get their oxygen from the umbilical cord which connects the baby to the mother's body. the baby doesn't take their first breath of air until after they are out of the mother's body and the cord is cut.
2006-12-14 19:12:16
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answer #4
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answered by Tracey C 2
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Fetus dont breathe in womb as their lungs are collapsed and no purification / oxygenation occurs in lungs. They get their oxygen through umbilical arteries which through complex arterial and venous circulation gets nourishment and oxygen
2006-12-15 00:07:12
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answer #5
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answered by saurav s 2
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hi, a touch one does no longer breathe contained in the mummy. at the same time as they emerge from the womb, they make their first attempt to respire. the infant receives its needed oxygen from the blood by the umbilical twine.
2016-11-26 20:38:04
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answer #6
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answered by ? 4
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They breathe amniotic fluid. When your baby is ready to be born, it's lungs need to be mature enough to breathe oxygen.
2006-12-14 19:50:32
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answer #7
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answered by Dan 1
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Through the umbilical cord :D
(the baby's belly button) :D
2006-12-14 19:28:45
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answer #8
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answered by Bhavz 2
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umbilical cord
2006-12-14 19:12:06
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answer #9
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answered by Anonymous
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