Sources
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Tuberosity of the ischium
From Wikipedia, the free encyclopedia
| Bone: Tuberosity of the ischium | ||
|---|---|---|
 |
||
| Capsule of hip-joint (distended). Posterior aspect. (Tuberosity of ischium visible at bottom left.) | ||
 |
||
| The superficial branches of the internal pudendal artery. (Tuber. ischial. visible at center left.) | ||
| Latin | tuber ischiadicum | |
| Gray's | subject #57 235 | |
| Dorlands/Elsevier | t_21/12827506 | |
Posteriorly, the superior ramus of the ischium forms a large swelling, the tuberosity of the ischium (or ischial tuberosity).
It marks the lateral boundary of the pelvic outlet.
When sitting, the weight is frequently placed upon the ischial tuberosity.[1]
Contents |
The tuberosity is divided into two portions: a lower, rough, somewhat triangular part, and an upper, smooth, quadrilateral portion.
- The lower portion is subdivided by a prominent longitudinal ridge, passing from base to apex, into two parts;
- the outer gives attachment to the Adductor magnus,
- the inner to the sacrotuberous ligament.
- The upper portion is subdivided into two areas by an oblique ridge, which runs downward and outward;
- from the upper and outer area the Semimembranosus arises;
- from the lower and inner, the long head of the Biceps femoris and the Semitendinosus.
 Right hip bone. External surface. |
 Right hip bone. Internal surface. |
 Plan of ossification of the hip bone. |
 Diameters of inferior aperture of lesser pelvis (female). |
 Right hip-joint from the front. |
 The Obturator externus. |
- ^ Goossens R, Teeuw R, Snijders C (2005). "Sensitivity for pressure difference on the ischial tuberosity.". Ergonomics 48 (7): 895-902. PMID 16076744.
- SUNY Labs 41:st-0204 - "The Female Perineum: Bones"
- SUNY Labs 17:os-0114 - "Major Joints of the Lower Extremity: Hip bone (lateral view)"
- Norman/Georgetown pelvis (pelvisposterior, pelvislateral, pelvisinside)
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 As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
|
|
|
|---|---|
| General | sacrum, coccyx, hip bone |
| Ilium | Body (Arcuate line) Wing: gluteal lines (Posterior, Anterior, Inferior) - Fossa - iliac spines (Anterior superior, Anterior inferior, Posterior superior, Posterior inferior) - Crest - Tuberosity |
| Ischium | Body (Ischial spine, Lesser sciatic notch) - Superior ramus (Tuberosity of the ischium) - Inferior ramus |
| Pubis | Body - Superior ramus (Pubic tubercle, Pubic crest, 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 |
 |
This musculoskeletal system article is a stub. You can help Wikipedia by expanding it. |