Valvula semilunaris anterior

例句：

1. 1.The surgeon performed a delicate operation on the patient's Valvula semilunaris anterior.
   外科医生对患者的瓣膜前叶进行了一项精细的操作。
2. 2. The heart valves are crucial for maintaining proper blood flow.
   心脏瓣膜对于保持适当的血流至关重要。
3. 3. During surgery, the surgeon carefully removed the damaged Valvula semilunaris anterior.
   在手术过程中，外科医生小心翼翼地切除了受损的瓣膜前叶。