Lesser sciatic foramen

Lesser sciatic foramen

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



Caption = Articulations of pelvis. Anterior view.



Caption2 = Articulations of pelvis. Posterior view.
System =
MeshName =
MeshNumber =
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.

Boundaries

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.

Contents

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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  • foramen ischiadicum minus — [TA] lesser sciatic foramen: a hole converted from the minor sciatic notch by the sacrotuberal and sacrospinal ligaments; called also lesser ischiadic or lesser sacrosciatic f …   Medical dictionary

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  • Foramen — A natural opening. Although a foramen is usually through bone, it can be an opening through other types of tissue, as with the foramen ovale. * * * An aperture or perforation through a bone or a membranous structure. SYN: trema (1). [L. an… …   Medical dictionary

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