lunulae of semilunar valves

例句：

1. 1. The lunulae of the semilunar valves are responsible for the movement of bloodthrough the heart.
   半月瓣的月牙形部分负责心脏中血液的流动。
2. 2.During surgery, the surgeon carefully removesthe lunulae to ensure properfunctioning of the heart valves.
   在手术过程中，外科医生小心翼翼地移除半月瓣以确保心脏瓣膜的正常功能。
3. 3. Thelunulae play a crucial rolein maintaining the integrity of the heart's structure and function.
   半月瓣在保持心脏结构完整性和功能方面起着至关重要的作用。