supravesical fossa supravesical fossa the supravesical fossa is a fossa bounded by the medial umbilical fold and median umbilical fold. supravesical fossaposterior view of the anterior abdominal wall in its lower half. the peritoneum is in place, and the various cords are shining through.inguinal fossaedetailsidentifierslatinfossa supravesicalista98a10.1.02.430ta23792fma21051anatomical terminology