sciatic foramen

sciatic foramen
sciatic foramen n either of two foramina on each side of the pelvis that are formed by the hip bone, the sacrospinous ligament, and the sacrotuberous 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 and inferior 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 obturator internus muscle and its nerve, to the internal pudendal artery and veins, and to the pudendal nerve called also lesser sciatic foramen

Medical dictionary. 2011.

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  • sciatic foramen — noun : either of two foramina on each side leading from the pelvis to the gluteal and peroneal regions and transmitting respectively (1) the sciatic nerve, superior and inferior gluteal, pudendal, and other nerves, associated vessels, and the… …   Useful english dictionary

  • Greater sciatic foramen — Infobox Anatomy Name = Greater sciatic foramen Latin = foramen ischiadicum majus GraySubject = 80 GrayPage = 309 Caption = Articulations of pelvis, anterior view, with greater sciatic foramen (labeled in red) and its boundaries. Caption2 =… …   Wikipedia

  • 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 …   Wikipedia

  • greater sciatic foramen — n SCIATIC FORAMEN (a) …   Medical dictionary

  • lesser sciatic foramen — n SCIATIC FORAMEN (b) …   Medical dictionary

  • sciatic notch — n either of two notches on the dorsal border of the hip bone on each side that when closed off by ligaments form the corresponding sciatic foramina: a) a relatively large notch just above the ischial spine that is converted into the greater… …   Medical dictionary

  • Foramen — In anatomy, a foramen (pl. foramina) is any opening. ExampleskullSee Foramina of skullOther* the apical foramen is the hole at the tip of the root of a tooth. * the foramen ovale (heart) is a hole between the venous and arterial sides of the… …   Wikipedia

  • Sciatic nerve — The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal cord (in the low back) and extends through the buttock area to send nerve endings down to the legs. Pain resulting from irritation of the… …   Medical dictionary

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

  • 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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