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The primary factor that initiates breathing in newborns is the need for oxygen. The fetus actually practices breathing while still in the womb. So spanking them on the butt once they are born is totally unnecessary and no longer practiced. The newborn will take its first breath when it needs it, as long as the airway is clear. That is why one of the first things they do after a baby is born is to use a syringe to empty the airways of amniotic fluid. The rest is up to nature and instinct to take over and the baby will start breathing on their own.

Oh my god. I can't believe the above answer. I'm assuming you are looking for an answer for an A&P 2 class. The answer you are looking for is that during fetal life, the lungs of a fetus are filled with fluid and all respiratory exchanges are made by the placenta. Vascular shunts cause circulating blood to largely bypass the lungs. At birth, the fluid filled pathway empties, and the respiratory passageways fill with air. As the P co2 in the baby's blood rises, the respiratory centers are excited, causing the baby to take its first breath. The alveoli inflate and begin to function in gas exchange, but it is nearly two weeks before the lungs are fully inflated. You can find this in any A & P book and this information comes from an A&P 8th edition. Please don't use the answer provided above.

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What is the primary factor that initiates breathing in the newborn infant?

The primary factor that initiates breathing in newborns is the need for oxygen. The fetus actually practices breathing while still in the womb. So spanking them on the butt once they are born is totally unnecessary and no longer practiced. The newborn will take its first breath when it needs it, as long as the airway is clear. That is why one of the first things they do after a baby is born is to use a syringe to empty the airways of amniotic fluid. The rest is up to nature and instinct to take over and the baby will start breathing on their own. Oh my god. I can't believe the above answer. I'm assuming you are looking for an answer for an A&P 2 class. The answer you are looking for is that during fetal life, the lungs of a fetus are filled with fluid and all respiratory exchanges are made by the placenta. Vascular shunts cause circulating blood to largely bypass the lungs. At birth, the fluid filled pathway empties, and the respiratory passageways fill with air. As the P co2 in the baby's blood rises, the respiratory centers are excited, causing the baby to take its first breath. The alveoli inflate and begin to function in gas exchange, but it is nearly two weeks before the lungs are fully inflated. You can find this in any A & P book and this information comes from an A&P 8th edition. Please don't use the answer provided above.


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What is primary factor that initieates breathing in a newborn infant?

The primary factor that initiates breathing in newborns is the need for oxygen. The fetus actually practices breathing while still in the womb. So spanking them on the butt once they are born is totally unnecessary and no longer practiced. The newborn will take its first breath when it needs it, as long as the airway is clear. That is why one of the first things they do after a baby is born is to use a syringe to empty the airways of amniotic fluid. The rest is up to nature and instinct to take over and the baby will start breathing on their own. Oh my god. I can't believe the above answer. I'm assuming you are looking for an answer for an A&P 2 class. The answer you are looking for is that during fetal life, the lungs of a fetus are filled with fluid and all respiratory exchanges are made by the placenta. Vascular shunts cause circulating blood to largely bypass the lungs. At birth, the fluid filled pathway empties, and the respiratory passageways fill with air. As the P co2 in the baby's blood rises, the respiratory centers are excited, causing the baby to take its first breath. The alveoli inflate and begin to function in gas exchange, but it is nearly two weeks before the lungs are fully inflated. You can find this in any A & P book and this information comes from an A&P 8th edition. Please don't use the answer provided above.


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