O. is a tunnel that connects the upperChambers of the heart - the right atrium and the left atrium.
卵圆孔未闭会导致心脏上部腔体,即左心房和右心房之间存在一条通道连接。
2
The condition occurs when the heart's two upperChambers, or atria, quiver rather than contracting rhythmically.
这种情况发生时,心脏的两个上心室或心房,颤动而不是有规律的收缩。
3
When the heart beats, an electrical signal passes from the top of the heart, near the atria (upperchambers), down through the ventricles (lower chambers), and the chambers contract in that order.