The pelvic floor (levator ani) has a hiatus called the 'levator hiatus' through which all of the following pass EXCEPT:
- A Urethra
- B Ureter ✓
- C Vagina
- D Rectum
Correct answer: B. Ureter
Explanation
The levator hiatus (urogenital hiatus) is a midline gap in the levator ani through which pass the urethra, vagina (in females), and anorectal junction. The ureter descends in the extraperitoneal fascia on the lateral pelvic wall and enters the bladder by passing under the uterine artery ('water under the bridge') without passing through the levator ani. Levator hiatus enlargement contributes to pelvic organ prolapse.
Reference: BD Chaurasia's Human Anatomy, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.