| Bone: Body of ischium | |
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| Right hip bone. External surface. (Ischium is at bottom left.) | |
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| Capsule of hip-joint (distended). Posterior aspect. | |
| Latin | corpus ossis ischii |
| Gray's | subject #57 235 |
The body of the ischium enters into and constitutes a little more than two-fifths of the acetabulum.
Contents |
Surfaces
Its external surface forms part of the lunate surface of the acetabulum and a portion of the acetabular fossa.
Its internal surface is part of the wall of the lesser pelvis; it gives origin to some fibers of the Obturator internus.
Borders
Its anterior border projects as the posterior obturator tubercle.
From its posterior border there extends backward a thin and pointed triangular eminence, the ischial spine, more or less elongated in different subjects.
Above and below the spine
Above the spine is a large notch, the greater sciatic notch.
Below the spine is a smaller notch, the lesser sciatic notch.
Additional images
 Right hip bone. Internal surface. |
 Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. |
External links
- SUNY Labs 44:st-0723 - "The Male Pelvis: Hip Bone"
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated.
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