Fasciculus atrioventricularis

例句：

1. 1. The Fasciculus atrioventricularis is a crucial part of the heart's electrical system.
   房室结是心脏电系统的关键部分。
2. 2. During surgery, the surgeon must carefully dissect the Fasciculus atrioventricularis toavoid damaging the heart tissue.
   在手术中，外科医生必须小心地解剖房室结，以避免损伤心脏组织。
3. 3.The Fasciculus atrioventricularis plays a vital role in the regulation of heart rate and rhythm.
   房室结在调节心率和节律方面起着至关重要的作用。