Medical Dictionary
Main Entry:
sciatic foramen Function:
noun : either of two foramina on each side of the pelvis that are formed by the hipbone, the sacrospinous ligament, and thesacrotuberous ligament and that form a passage from the pelvis to the gluteal and peroneal regions:
a : one giving passage to the piriformis muscle and to the sciatic, superior andinferior gluteal, and pudendal nerves together with their associated arteries and veins called also
greater sciatic foramen b : one giving passage to the tendon of the obturatorinternus muscle and its nerve, to the internal pudendal artery and veins, and to the pudendal nerve called also
lesser sciatic foramen
