Noduli valvularum semilunarium

例句：

1. 1. The heart's valvular system is responsible for regulating blood flow.
   心脏的瓣膜系统负责调节血流。
2. 2.The surgeon performed a delicate operation to replace the damaged valve leaf.
   外科医生进行了一次精细的操作，以替换损坏的瓣叶。
3. 3.The patient was diagnosed with a condition that required regular monitoring of the heart's valvular system.
   患者被诊断出患有需要定期监测心脏瓣膜系统的病症。