atrial septum的用法和樣例：
例句
- Atrial septal defects occur when the partitioning process does not occur completely, leaving an opening in the atrial septum.
如果在間隔形成的過程中發育不全，即可在房間隔上留下一個洞。 - In cardiac operation,it is used for attracting the blood in left atrium through atrial septal or upper lung vein,inserting in left atrium.
在心臟直視手術中，經房間隔或左上肺靜脈，插入左房，吸引左房內的血液。
