Plexus venosus rectalis

例句：

1. 1. Thedoctor performed a surgery to remove the tumorfrom the Plexus venosus rectalis.
   医生进行了手术，将肿瘤从直肠静脉丛中切除。
2. 2.The patient was diagnosed with a condition affectingthe Plexus venosusrectalis.
   患者被诊断出患有影响直肠静脉丛的状况。
3. 3. Theresearch focused on the Plexus venosusrectalis and its role indigestion.
   研究专注于直肠静脉丛及其在消化中的作用。