Answer: Pelvic Brim
Explanation: The pelvis region is divided into two portions, one being false or greater pelvis, and other is true or lesser pelvis. False pelvis lies above the brim, and true pelvis lies below the brim and is part of the abdominal cavity. Pelvic brim is also termed as pelvic inlet. It is surrounded on three sides by the following regions-
Posterior: sacral promontory
Anterior: symphysis pubis
Lateral: Iliopectinial
