Pregnancy and the Birth for a First Time Mum. pregnancy | Page 15

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Inside the woman’s womb, the source of nourishment or
blood supply for the growing foetus is the placenta. But during childbirth, the foetus has been already separated from its source of nourishment
which is the placenta. Therefore, the newborn will adjust from time to time in
order for thee newborn to survive in the outside world.

First and foremost, the newborn will already be apart from the placenta that is why the
source of blood supply will already be redirected and will undergo adjustments especially in
the blood circulation. The source of oxygenated blood inside the womb is the placenta. But
when the baby is in the outside world already, this will be shifted already to the lungs which is
already matured by that time. Therefore, its oxygenated blood will already take place in the
lungs to be able to be distributed all over the body. Another change is the closure of the
shunts of the heart causing it to prevent the mix up of unoxygenated and oxygenated blood.
The blood circulation is shifted as the shunts will be closing normally during delivery stage.
This is how the newborn can survive during the first stages of life in the outside world.
As time goes by, the newborn will be able to adapt the changes that may happen as he or she
grows up.(embryology.ch,2016)

(Standfordchildrens.org 2016)

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