________ Carry relatively little fetal blood

Name: ________ Carry relatively little fetal blood
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Question

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The pulmonary veins carry relatively little blood to the left atrium before birth because the lungs are not functioning.When the lungs expand at birth and the pulmonary vascular resistance falls,there is a marked increase in pulmonary blood flow with a consequent increased flow of oxygenated blood to the left atrium through the pulmonary veins.

________ Carry Relatively Little Fetal Blood