It is exchanged in the same place as the mother. Carbon dioxide is exchanged in the lungs. The fetal blood is cared for in the body by the umbilical cord and the blood is filtered by the mothers organs and her lungs. Such is a strong reason never to smoke, drink or do drugs during pregnancy. Cord blood is extremely rich and full of good things for the child later in life if he or she gets sick. That is why you see ads on television for Cord Banks now.
I wouldn't exactly characterize it as separating carbon dioxide and oxygen, however, I think the answer you are looking for is the lungs which takes up oxygen into the bloodstream and expels carbon dioxide out of the bloodstream into the lungs so we can breathe it out again.
The name of that organ is 'Pair of Lungs'.
The respiratory system is responsible for transferring gases (oxygen and carbon dioxide) into and out of the blood. This process occurs in the lungs where oxygen is taken in and carbon dioxide is released.
The lungs are responsible for exchanging oxygen and carbon dioxide with the blood. Oxygen is taken up from the air into the blood through the alveoli, while carbon dioxide is expelled from the blood into the lungs to be exhaled.
The largest thoracic organ is the lungs. They are responsible for exchanging oxygen and carbon dioxide with the blood, helping to oxygenate the body and remove waste gases.
lungs
organ system
Respiratory System
The organ responsible for exchanging oxygen and carbon dioxide during respiration in water is called the gills. Gills are highly specialized structures found in aquatic animals such as fish that facilitate the exchange of these gases between the water and the animal's bloodstream.
The organ is gills.
Lungs.
The respiratory system is responsible for exchanging carbon dioxide from the bloodstream for oxygen to be delivered to tissues. This process occurs in the lungs where oxygen is inhaled and carbon dioxide is exhaled.
lungs
takes in oxygen and releases carbon dioxide.
Respiratory system
I wouldn't exactly characterize it as separating carbon dioxide and oxygen, however, I think the answer you are looking for is the lungs which takes up oxygen into the bloodstream and expels carbon dioxide out of the bloodstream into the lungs so we can breathe it out again.
The lungs are the main organs responsible for breathing. They exchange oxygen from the air with carbon dioxide in the blood, which helps to supply oxygen to the body's cells and remove waste carbon dioxide.