| ischiadic | <anatomy> Ischial. <medicine> Ischiadic passion or disease, a rheumatic or neuralgic affection of some part about the hip joint. Synonym: sciatica. Origin: L. Ischiadicus, Gr, fr. The hip joint, hip or loin. Cf. Sciatic. Source: Websters Dictionary (01 Mar 1998) |
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| ischiadic plexus | Formed by the fourth and fifth lumbar (lumbosacral trunk) and first, second, and third sacral nerves; it lies on the inner surface of the posterior wall of the pelvis usually embedded in the piriformis muscle; its nerves supply the lower limbs, its major product being the sciatic nerve. Synonym: plexus sacralis, ischiadic plexus, sciatic plexus. (05 Mar 2000) |
| ischiadic spine | A pointed process from the posterior border of the ischium on a level with the lower border of the acetabulum; gives attachment to the sacrospinous ligament; the pudendal nerve passes dorsal to the ischial spine, which is palpable per vagina or rectum, and thus is used as a target for the needle-tip in administering a pudendal nerve block. Synonym: spina ischiadica, ischiadic spine, sciatic spine. (05 Mar 2000) |
| ischiadicus | Synonym: sciatic. Origin: L. (05 Mar 2000) |