• Source: Lesser sciatic foramen

The lesser sciatic foramen is an opening (foramen) between the pelvis and the back of the 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.




Structure


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.




Function



The following pass through the foramen:

the tendon of the obturator internus
internal pudendal vessels
pudendal nerve
nerve to the obturator internus




See also


Greater sciatic foramen




References


This article incorporates text in the public domain from page 309 of the 20th edition of Gray's Anatomy (1918)




External links

Kata Kunci Pencarian:

• Lesser sciatic foramen
• Greater sciatic foramen
• Foramen
• Sciatic foramina
• Lesser sciatic notch
• Obturator internus muscle
• List of anatomy mnemonics
• Pudendal nerve
• Sacrospinous ligament
• List of foramina of the human body