Anatomy
sciatic nerve
sci·at·ic nerve
Subclass of:
Lumbosacral plexus
Definitions related to sciatic nerve:
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(nerve, sciatic) A nerve arising from the merge of the lumbar and sacral rami in the pelvis and dividing into the common peroneal and tibial nerves, and which innervates the muscles of the thigh.CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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A nerve which originates in the lumbar and sacral spinal cord (L4 to S3) and supplies motor and sensory innervation to the lower extremity. The sciatic nerve, which is the main continuation of the sacral plexus, is the largest nerve in the body. It has two major branches, the TIBIAL NERVE and the PERONEAL NERVE.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Largest peripheral nerve in human body, consisting of 13 branches; controls leg movements.CRISP ThesaurusNational Institutes of Health, 2006
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The longest single nerve that is formed by the merging of the ventral rami of the L4, L5, and S1 in the pelvis and passes down the lower limb where it divides into the common peroneal and tibial nerves.NCI ThesaurusU.S. National Cancer Institute, 2021
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Sciatic nerve, largest and thickest nerve of the human body that is the principal continuation of all the roots of the sacral plexus. It emerges from the spinal cord in the lumbar portion of the spine and runs down through the buttocks and the back of the thigh; above the back of the knee it...Encyclopedia Britannica, Inc., 2020
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