گزارش واریاسیون عصبی در ناحیه گلوتئال
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Abstract:
Received: 31 Dec, 2008 Accepted: 22 July, 2009 Abstract The sciatic nerve, posterior cutaneus nerve of thigh, and inferior gluteal nerve are branches of sacral plexus. They leave the pelvis via greater sciatic foramen and arises in gluteal region in infra piriformis fossa. The sciatic nerve usually divides at the upper angle of the popliteal fossa to common peroneal and tibial nerves. There are different variations in course of these nerves. Here common peroneal part of sciatic nerve, part of posterior cutaneous nerve of the thigh and inferior gluteal nerve leave the pelvis above and tibial part of sciatic nerve and part of posterior cutaneous nerve of thigh pass inferior to the piriformis muscle to enter the gluteal region. Variations in these three nerves are rare and are of clinical and surgical importance. Keywords : Sciatic nerve, Inferior gluteal nerve, Variations, Posterior cutaneous nerve of the thigh, Piriformis muscle Address : Anatomy Department, Hamedan University of Medical Sciences, Hamedan , Iran Tel: (+98) 09181110700 E mail : [email protected] Source: UMJ 2009: 20(3): 243 ISSN: 1027-3727
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Sciatic nerve, as the largest branch of the sacral plexus and the thickest nerve of the body, forms from the ::::union:::: of ventral branches of L4-S3. Then it leaves the pelvis via the greater sciatic foramen below the piriformis and descends between the greater trochanter and ischial tuberosity. Afterwards, it divides into the tibial and the common proneal nerves, most frequently at the leve...
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Journal title
volume 20 issue 3
pages 226- 228
publication date 2009-12
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