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