Which structure forms the primary passive support of the uterus at the level of the cervix and upper vagina, preventing uterine prolapse?

• A Round ligament of the uterus
• B Uterosacral ligament
• C Cardinal ligament (Mackenrodt's ligament) ✓
• D Pubocervical fascia

Explanation

The cardinal ligament (transverse cervical ligament of Mackenrodt) is the strongest and most important passive support of the cervix and upper vagina, attaching the cervix to the lateral pelvic wall. The utosacral ligaments provide secondary posterior support. The round ligament maintains anteversion but is not a weight-bearing support structure. Williams Gynaecology and standard anatomy texts consistently identify the cardinal ligament as Level I support.

Reference: Gray's Anatomy, 42nd ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.