Obturator Crest

The anterior border of superior pubic ramus presents a sharp margin, the obturator crest, which forms part of the circumference of the obturator foramen superiorly and affords attachment to the obturator membrane.

The obturator crest extends from the pubic tubercle to the acetabular notch.

Bones of pelvis / pelvic cavity (TA A02.5.01–03, GA 2.231–241)
General sacrum · coccyx · hip bone
Ilium
body arcuate line
wing

gluteal lines (posterior, anterior, inferior)

iliac spines (anterior superior, anterior inferior, posterior superior, posterior inferior)

other: crest · tuberosity · tubercle · fossa
Ischium
body ischial spine · lesser sciatic notch
superior ramus tuberosity of the ischium
inferior ramus no substructures
Pubis
body pubic crest
superior ramus pubic tubercle · obturator crest
inferior ramus pectineal line
Compound

acetabulum (acetabular notch) · iliopubic eminence / iliopectineal line · linea terminalis · ischiopubic ramus / pubic arch
obturator foramen · greater sciatic foramen / greater sciatic notch · lesser sciatic foramen

lesser pelvis (pelvic inlet, pelvic brim, pelvic outlet) · greater pelvis

M: BON/CAR

anat (c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug (M5)


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