Bone: Body of ilium
Latin	corpus ossis ilii
Gray's	subject #57 231

The body of ilium enters into the formation of the acetabulum, of which it forms rather less than two-fifths.

Its external surface is partly articular, partly non-articular; the articular segment forms part of the lunate surface of the acetabulum, the non-articular portion contributes to the acetabular fossa.

The internal surface of the body is part of the wall of the lesser pelvis and gives origin to some fibers of the Obturator internus.

Below, it is continuous with the pelvic surfaces of the ischium and pubis, only a faint line indicating the place of union.

[edit] External links

• http://ect.downstate.edu/courseware/haonline/labs/l44/st0706.htm

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v • d • e 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