urogenital sinus

例句：

1. 1. The doctor performed a biopsy to investigate the cause of the patient's urogynecological symptoms.
   医生进行了活检以调查患者的泌尿生殖系统症状的原因。
2. 2. During childbirth, the uterus and vagina are connected by the urogenital sinus.
   分娩过程中，子宫和阴道通过生殖窦相连。
3. 3. The urogenital sinus is an important structure in the human body that connects the bladder andrectum.
   生殖窦是人体中一个重要结构，连接膀胱和直肠。