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单词 sciatic nerve
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sciatic nerve
sciatic nerve n. [after post-classical Latin nervus sciaticus (1698 (in an English context) or earlier); compare French nerf sciatique (1732 or earlier)] Anatomy and Zoology (a) a very large nerve which arises from the sacral plexus, passes through the greater sciatic notch, and runs down the back of thigh, dividing above the knee into the common peroneal and tibial nerves, and mainly supplying muscles of the thigh (also great sciatic nerve); (b) (more fully small sciatic nerve) the posterior femoral cutaneous nerve, a small, primarily sensory nerve arising from the sacral plexus and supplying the skin of the back of the thigh (now rare).In formal anatomical nomenclature the preferred name for the great sciatic nerve is ischiadic nerve.
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1726 W. Cheselden Anat. Human Body (ed. 3) 268 These five, when united, constitute the largest nerve of the body, so well known by the name of the sciatic, or ischiatic nerve.
1844 tr. J. Cruveilhier Anat. Human Body 805 The great sciatic nerve..is the continuation of this plexus.
1861 Lancet 12 Oct. 344/1 Here is a diagram..intended to show the distribution of the small sciatic nerve, or the inferior gluteal, as some term it.
1940 G. S. Carter Gen. Zool. Invertebr. xvi. 297 (caption) The passage of a nerve-impulse across a point in the frog's sciatic nerve.
2000 Rugby World June 121/2 The sciatic nerve can be irritated by a muscle near the hip joint called the pyriformis muscle.
extracted from sciaticn.adj.1
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