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Inferior pubic ramus: Difference between revisions

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#REDIRECT [[Pubis (bone)#Structure]]
{{Infobox Anatomy |
Name = {{PAGENAME}} |
Latin = ramus inferior ossis pubis |
GraySubject = 57 |
GrayPage = 237 |
Image = Gray235.png |
Caption = Right hip bone. External surface. (Inferior ramus of pubis labeled at bottom right.) |
Image2 = |
Caption2 = |
System = |
MeshName = |
MeshNumber = |
DorlandsPre = r_02 |
DorlandsSuf = 12690329 |
}}
The '''inferior pubic ramus''' is thin and flattened. It passes lateralward and downward from the medial end of the [[superior ramus]]; it becomes narrower as it descends and joins with the [[inferior ramus of the ischium]] below the [[obturator foramen]].


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Its ''anterior surface'' is rough, for the origin of muscles—the [[Gracilis]] along its medial border, a portion of the [[Obturator externus]] where it enters into the formation of the [[obturator foramen]], and between these two, the [[Adductores brevis]] and magnus, the former being the more medial.


{{Authority control}}
The ''posterior surface'' is smooth, and gives origin to the [[Obturator internus]], and, close to the medial margin, to the [[Constrictor urethrae]].

The ''medial border'' is thick, rough, and [[everted]], especially in [[females]]. It presents two ridges, separated by an intervening space.

The ridges extend downward, and are continuous with similar ridges on the [[inferior ramus of the ischium]];
* to the external is attached the [[fascia of Colles]].
* to the internal the inferior fascia of the [[urogenital diaphragm]].

The ''lateral border'' is thin and sharp, forms part of the circumference of the [[obturator foramen]], and gives attachment to the [[obturator membrane]].

==See also==
* [[pubis (bone)]]

==External links==
* {{eMedicineDictionary|inferior+pubic+ramus}}

{{Gray's}}
{{Anatomy-stub}}
{{Pelvis}}

Latest revision as of 16:07, 14 July 2021

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