musculus levator ani

例句：

1. 1. The doctor advised him to exercise regularly to maintain his health.
   医生建议他定期锻炼以保持健康。
2. 2.The patient was unable to control his bowel movements after surgery.
   病人在手术后无法控制排便。
3. 3.The researcher found that the muscle plays a crucial role in controlling bladder function.
   研究者发现，这个肌肉在控制膀胱功能中起着关键作用。