Lunulae valvularum semilunarium

例句：

1. 1.The heart's valvular system is essential for its proper functioning.
   心脏的瓣膜系统对其正常功能至关重要。
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，以替换受损的瓣叶。
3. 3.The patient was referred to a specialist for further evaluation of their valvular condition.
   患者被转介给专家进一步评估他们的瓣膜状况。