| | fetu information,fetus (Site not responding. Last check: 2007-10-16) |
 | | The circulatory system of a human fetu works differentlyfrom that of born humans, mainly because the lungs are not in use: the fetu obtains oxygen and nutrients from the mother through the placenta and the umbilical cord. |
 | | Inthe fetu, there is an opening between the right and left atrium (the foramen ovale), and most of the blood flows from the right into the left atrium, then into the leftventricle from where it is pumped through the aorta into the body. |
 | | In the fetu, there is a special connectionbetween the pulmonary artery and the aorta, called the ductusarteriosus, which directs most of this blood away from the lungs (which aren't being used for respiration at this pointas the fetu is suspended in amniotic fluid). |
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