Fetal Circulation_PDF copy

Fetal Circulation_PDF copy - FETAL CIRCULATION THE FETAL...

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FETAL CIRCULATION
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THE FETAL CIRCULATION IS A SPECIAL CIRCULATION BECAUSE: 2. The PLACENTA serves as an interface between the mother and the fetus exchanging oxygen and nutrients as well as wastes between the fetus and the mother. 1. The fetus gets its oxygen and nutrients from the mother. Therefore the lungs and G.I. Tract are non- functional during gestation .
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THE PLACENTA 1. The placenta acts as an interface between the mother’s blood and the fetal blood. 2.There is never direct contact between mother and fetal blood. Nutrients and oxygen diffuse from the mother’s blood to the fetal blood via capillary- like fenestrations. 3. The placenta also takes wastes away from the fetus such as CO2, Urea, etc to be disposed of via the mother’s lungs and kidneys.
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THE PLACENTA (cont.) 4. Fetal arterial input into the placenta is via the umbilical arteries which are branches from the fetal internal iliac arteries. 5. Fetal venous drainage from the placenta is via
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This note was uploaded on 04/30/2011 for the course ANATOMY 3504 taught by Professor Steffens during the Spring '11 term at St. John's.

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Fetal Circulation_PDF copy - FETAL CIRCULATION THE FETAL...

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