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One of the reasons ductus arteriosus constricts and degenerates after birth is that oxygen level increases significantly
Posted: Fri Jul 15, 2022 5:19 pm
by answerhappygod
- One Of The Reasons Ductus Arteriosus Constricts And Degenerates After Birth Is That Oxygen Level Increases Significantly 1 (57.39 KiB) Viewed 42 times
One of the reasons ductus arteriosus constricts and degenerates after birth is that oxygen level increases significantly in the aorta. What causes aortic oxygen levels to rise after birth? A. Because the placenta is smaller than the baby's lungs. B. Because the amniotic fluid in the baby's lungs helps with oxygen diffusion. C. Because after birth 100% of the baby's blood flows through the fetal lungs for gas exchange, whereas before birth, less than half of the baby's blood flows to the placenta to get oxygen. D. All of the above.