Lesser sciatic foramen

Lesser sciatic foramen

Infobox Anatomy
Latin = foramen ischiadicum minus
GraySubject = 80
GrayPage = 309

Caption = Articulations of pelvis. Anterior view.

Caption2 = Articulations of pelvis. Posterior view.
System =
MeshName =
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DorlandsPre = f_12
DorlandsSuf = 12373178
An opening between the pelvis and the posterior thigh, the foramen is formed by the sacrotuberous ligament which runs between the sacrum and the ischial tuberosity and the sacrospinous ligament which runs between the sacrum and the ischial spine.


The lesser sciatic foramen has the following boundaries:
* Anterior: the tuberosity of the ischium
* Superior: the spine of the ischium and sacrospinous ligament
* Posterior: the sacrotuberous ligament

Alternatively, the foramen can be defined by the boundaries of the lesser sciatic notch and the two ligaments.


It transmits the following structures:
* the tendon of the Obturator internus
* internal pudendal artery
* internal pudendal veins
* pudendal nerve

External links

* - "The Female Perineum: Osteology"

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Look at other dictionaries:

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