Primary Supports
1. Mechanical Support
Mnemonic: 3 A
- Axis of uterus
- Anteversion angle (angle between cervix and vagina) – maintained by round ligament
- Anteflexion angle (angle between cervix and uterus) – maintained by round ligament
2. Muscular/Active Support
Mnemonic: Muscle PULLs
- Perineal body
- Urogenital diaphragm (superficial and deep transverse pereneii muscles)
- Levator ani (pelvic diaphragm)
3. Ligamentary Support
Mnemonic: Ligaments hold uterus like CUP
- Cardinal ligament (Transverse cervical/Mackenrodt’s ligament)
- Uterosacral ligament (most strong) – prevents retroversion
- Pubocervical ligament
Cardinal ligament + Pubocervical ligament = Triradiate ligament
Secondary supports (Peritoneal folds)
Mnemonic: RUB
- Rectouterine fold
- Uterovesical fold
- Broad ligament