Pelvic brim

Pelvic brim
The edge of the pelvic inlet (shown in red) is the pelvic brim
Diameters of superior aperture of lesser pelvis -- female. (Pelvic brim is not labeled, but is identifiable as the central opening at the top.)
Identifiers
FMA224780
Anatomical terms of bone

The pelvic brim is the edge of the pelvic inlet. It is an approximately butterfly-shaped line passing through the prominence of the sacrum, the arcuate and pectineal lines, and the upper margin of the pubic symphysis.

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