Musculus rectovesicalis

例句：

1. 1.The muscle of the rectovesicalis plays a crucial role in maintaining bowel movements.
   直肠肌肉在维持排便过程中起着至关重要的作用。
2. 2.During childbirth, the rectovesicalis is responsible for regulating the birth canal.
   分娩期间，直肠肌肉负责调节产道。
3. 3.A weakened rectovesicalis can lead to constipation or even fecal impaction.
   直肠肌肉弱化可能导致便秘甚至粪块阻塞。