The lowest of the three major bones that constitute each half of the pelvis.
[Latin, hip joint, from Greek iskhion.]
ischial is'chi·al (-əl) adj.
ischium
Dictionary:
is·chi·um (ĭs'kē-əm)  |
n., pl., -chi·a (-kē-ə).
The lowest of the three major bones that constitute each half of the pelvis.
The lowest of the three major bones that constitute each half of the pelvis.
| 5min Related Video: ischium |
| Sports Science and Medicine: ischium |
One of three bones that make up the coxal bone of the pelvic girdle. Each ischium forms the lower part of each side of the hip bone. When sitting, the body weight is borne entirely by the tuberosities of the ischium, which are the strongest parts of the hip bone.
| Veterinary Dictionary: ischium |
The caudal, dorsal portion of the hip bone. See also os coxae.
| Wikipedia: Ischium |
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This article is missing citations or needs footnotes. Please help add inline citations to guard against copyright violations and factual inaccuracies. (April 2009) |
| Bone: Ischium of pelvis | |
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| Pelvic girdle | |
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| Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis. (Ischium labeled at bottom left.) | |
| Latin | os ischii |
| Gray's | subject #57 234 |
| MeSH | Ischium |
The ischium forms the lower and back part of the hip bone (os coxae). The word comes from the Greek ischion, meaning "hip." (Taber's, 1985).
Situated below the ilium and behind the pubis, it is one of these three bones whose fusion creates the coxa.
It is divisible into three portions:
- Body of ischium - the portion that supports weight while sitting (especially noticeable on a hard surface).
- Superior ramus of the ischium
- Inferior ramus of the ischium
It is the strongest of the coxal bones.
Clinically, avulsion fracture of the ischial apophysis may occur.
Additional images
 Right hip bone. External surface. |
 Right hip bone. Internal surface. |
 Plan of ossification of the hip bone. |
 Male pelvis. |
 The Obturator externus. |
 Pelvis |
External links
- SUNY Labs 44:st-0722 - "The Male Pelvis: Hip Bone"
- ischium at eMedicine Dictionary
- Cross section at UV pelvis/pelvis-e12-15
References
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 As such, some of the information contained herein may be outdated.
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| Translations: Ischium |
Français (French)
n. - ischion
Deutsch (German)
n. - Sitzbein
Ελληνική (Greek)
n. - (ανατ.) ισχύον
Português (Portuguese)
n. - ísquio (m) (Anat.)
Русский (Russian)
седалищная кость
Español (Spanish)
n. - isquion, isquión
Svenska (Swedish)
n. - ischium (sittben)
中文（简体）(Chinese (Simplified))
坐骨
中文（繁體）(Chinese (Traditional))
n. - 坐骨
العربيه (Arabic)
(الاسم) الورك
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Learn More
 | ischialgia |
| ischiatic |
| ischiodynia |
 | Ilium ischium and pubis are what bones? Read answer... |
| What means pertaining to the ischium and pubis? Read answer... |
| Bone that is composed of the ilium ischium and pubis? Read answer... |
Help us answer these
 | Where do the ilium the ischium and the pubis meet? |
| What root word means ischium? |
| Is the ischium a irregular bone? |
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Sports Science and Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Ischium". Read more |
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| Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved. Read more |
