the blood from the mother runs alongside the blood from the foetus ;the mother's blood carries food and oxygen to the baby .The oxygen reachs the lungs and carbon dioxide +waste exits through the umbilical cord . Although they run beside each other they never mix.
The placenta acts as the lungs for the fetus.
The placenta is connected to the fetus and that is then receiving oxygen from the mother, and both lungs and placenta helps you breathe.
The foetus in embedded in fluid called amniotic fluid. Some times the foetus takes a breath in that fluid, just before the delivery. The result is disastrous. If the foetus is born with the fluid in the lungs, it is going to die in most of the cases. The foetus is getting all the oxygen and the nutrition from the mother. This is supplied through the placenta. So the lungs of the foetus are at rest in the womb of the mother.
Through the mother's lungs into her bloodstream, then across the placenta and through the umbilical cord to the fetus.
because the foetus gets food through placenta
To my knowledge there is only one way. Across the placenta and into the foetus. Everything taken into mothers body will pass across the placenta, around the system of the foetus and even returning waste back across the placenta through the magic of Osmosis.
The nutrients are absorbed through the placenta by the foetus. The foetus gets the oxygen and nutrition from the mother. The blood of the mother and foetus comes very close to each other in the placenta. Both are not mixed up. They are separated by very thin membrane. The surface area of the contact is very large as compared to the size of placenta.
Through the placenta and umbilical cord.
To hold the growing fetus .
To hold the growing fetus .
to hold the foetus thts growing.
Through the umbilical cord from the placenta since a fetus can't use lungs to obtain oxygen. Read more in the link below about fetal circulation.
Ellicit drugs, alcohol and nicotine.
Everything is supplied and filtered by the placenta.