<prompt> Ovarian fossa is formed by all exceptObliterated umbilical aeryInternal iliac aeryUreterRound ligament of ovary  <response>: Each ovary lies in the ovarian fossa on the lateral pelvic wall. Bounderies of ovarian fossa - anteriorly - By the obliterated umbilical aery; and posteriorly - By the ureter and the internal iliac aery Ref : B D Chaurasias Human Anatomy , seventh edition , volume 2 , pg. no. 414 