InlundibulopEURlvic ligament Ans. is d i.e. Infundibulopelvic ligament Ref. Jeffcoate 7/e, p 46; CGDT 10/e, p 49 Vagina is strong canal of muscles (- 7.5 cm long) which extends from the uterus to the vestibule of the external genitalia, where it opens to the exterior. The cervix of the uterus projects into its upper pa and towards its lower end, vagina pierces the urogenital diaphragm and is surrounded by the 2 bulbocavernosus muscles which act as a sphincter (sphincter vaginae). Our question is related to the suppos of vagina. Before going into its details lets have a second look at the options. All the options given in the question are somehow related to vagina therefore may have a role in suppoing vagina except the infundibulopelvic ligaments. l7fundibulopelvic ligament attach the ovary to the lateral pevlic wall and suppoa the ovary, but has no connection to the vagina or uteriiinererore does not suppo either structures. So, by exclusion, our answer is infundibulopelvic ligament. Now, coming on to the details of suppos ol vaglna ?Vagina is suppoed in the lower pa as is evident lrom the diagram by: i. Bulbocavernosus muscle (at the level of introitus). ii. Urogenital diaphragm. iii. Perineal muscles iv. Levator ani muscles (known as pelwc dnphragm) suppo the lower 1/3 of vagina. ln its upper pa : vagina is suppoed by (see the ctiag) : Ca'dinal ligament (also called as lrarsverse cetvtcal hgament). The anterior wall of vagina, urethra and bladder base are suppoed by : PuboceNical fascia. The poster or wall of vagrna is suppoed by : Penneal body.