foramen

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Related to Greater sciatic foramen: obturator foramen, Piriformis, pudendal nerve, Greater sciatic notch

foramen

a natural hole, esp one in a bone through which nerves and blood vessels pass
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

foramen

[fə′rā·mən]
(biology)
A small opening, orifice, pore, or perforation.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This passes between the sacral nerves, usually S1 and S2, sometimes S2 and S3 and leaves the pelvis through the greater sciatic foramen below the piriformis muscle (Figure 5).
In the vast majority of cases, the sciatic nerve enters the lower limb via the greater sciatic foramen, passing below piriformis [2].
The cyst was found immediately below the piriform muscle, which lines the greater sciatic foramen on the left parietal wall of the minor pelvis, and it was then excised.
* The morphology (Shape) of greater sciatic foramen was studied & the shape was deep in both the foetuses.
These ligaments attach the cervix and upper vagina to the pelvic wall in the area of the greater sciatic foramen. When these suspensory fibers are damaged, the cervix, upper vagina prolapses downward away from the greater sciatic foramen, and fall below the normal position at the level of the ischial spine.

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