Most of that blood actually flows through the foramen ovale, an opening between the atria.

大多数血液实际上流经心房间的一个开口卵圆孔。

Soon after birth, the foramen ovale closes and prostaglandin E2 levels fall, causing the ductus arteriosus to close off.

出生后不久，卵圆孔闭合、前列腺素E2水平下降，导致动脉导管闭合。

Again, I, kind of, wrote some brief notes here, you know, foramen ovale, RA to LA 'cause fetal lungs don't work.

同样地，我在这里写了一些简短的笔记，你知道，卵圆孔，从 RA 到 LA，因为胎儿的肺不起作用。

After birth, though, when the baby has to use its lungs for oxygen, normally these shunts go away, the foramen ovale closes up and the vessels become ligaments.

出生之后，宝宝开始用肺呼吸来获得氧气；通常，这些分流会消失：卵圆孔会关闭，动脉导管和静脉导管变成韧带。

Some possibilities are having the foramen ovale or ductus arteriosus stay open, or for the baby to have what's called a ventricular septal defect, where there's a shunt between the ventricles —which is actually present in about a third of cases.

也有可能的是卵圆孔和动脉导管仍然开放，或者一些婴儿有所谓的室间隔缺损，即在室间隔之间有分流，这在大概三分之一的病例中是存在的。

During fetal development, when the interatrial septum is being formed, a small passageway called the " foramen ovale" is left open to allow the blood to bypass the non-functional fetal lungs while the fetus obtains oxygen from the mother's placenta.

在胎儿时期，当房间隔正在形成时，残留下一个被称之为为“卵圆孔”的细小通道，允许血液绕过无功能的胎儿肺，而胎儿是从母亲的胎盘获得氧气。