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Fetal circulation

Umbilical cord contains 2 arteries and one vien
Carry waste products away from fetus to the mother through the placenta arteries
Carries nutrients and oxygen to the fetus from the mother through the placenta vein
Fetus does not purify its blood in the liver
All chambers in the fetal heart have equal pressure
Oxygenated blood from placenta (mother) enter the fetus through the Umbilical vein
Path of blood to IVC takes one of two paths 50% travels through the liver and into IVC and the rest bypasses the liver
50% of blood bypasses the liver by going through the Ductus venosus and than IVC
Is located close to the umbilical vein and regulates blood entering the IVC through ductus venosus splincter
Overloading the fetal heart when the sphincter is CLOSED, more blood goes into the PV and enters the IVC
When the sphincer is OPEN, blood flows into the ductus venosus and enters the IVC
If the volume of venous flow is high the sphincter closes and the blood has a longer route to IVC, this prevents overloading of heart
The IVC contains what two types of blood when it enters the right atrium Oxygenated and Deoxygenated blood
Blood from umbilical vein Oxygenated
Blood from lower part of the fetal body Deoxygenated`
Created by: yovana2011