Term
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Definition
- Lungs not necessary.
- High pulmonary vascular resistance (high on RT side).
- O2-Placenta,Umbilical Vein,Duct. Venosus,IVC,Heart.
- IVC, Eustatian Valve, FO, LA.
- SVC, TV, PA, DA, AO.
- Deoxygenated-Umbilical Arteries, Placenta.
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Term
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Definition
- Protects lungs from circulatory overload.
- Only 9% of bolod goes to lungs.
- Allows RV to strengthen pulmonary vascular resistance.
- Turns into Ligamentum Arteriosum.
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Term
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Definition
- Connects Umbilical Vein to IVC.
- Carries mostly O2 blood.
- Turns into Ligamentum Venosum.
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Term
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Definition
- Shunts O2 blood from RA to LA.
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Term
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Definition
- 1st breath, lungs fill, respiration established.
- Umbilical cord seperates placenta from circulation.
- Sytemic resistance up, Pulmonary resistance down.
- Blood to PA and lungs, not DA, DA starts to close.
- Blood to LA, pressure up, seals flap of FO, becomes Fossa Ovalis.
- Umbilical Arteries and veins close.
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