Pregnancy and the Birth for a First Time Mum. pregnancy | Page 13

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The placenta is an organ that develops
during pregnancy and attaches to the lining of a uterus.
It keeps the foetus in good supply of blood and nutrients, providing a
link between the mother's nutrients and the foetus.
Oxygen and nutrients move from the mother's blood supply into the placenta. From
there, the umbilical cord transports the oxygen and nutrients to the foetus.
Waste products from the foetus, such as carbon dioxide, move back along the umbilical cord
into the placenta and then into the mother’s bloodstream. From there it is disposed of.
The placenta creates hormones that help the foetus grow. It also gives some protection
against infection and bacteria, but not viruses.
It is possible for certain toxins like alcohol and nicotine to pass through the placenta.
Towards the end of a pregnancy, the placenta provides the foetus with antibodies
giving it immunity for about three months after birth.
After the baby is born, a series of contractions will push the placenta out through the
vagina. The detachment of the placenta from the mother can help induce milk flow for feeding the baby. (Nhs.uk 2016)

(Bioninja.com.au 2016)

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