Sciatic Nerve

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.

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Tree Number(s): A08.800.800.720.450.760

MeSH Unique ID: D012584

Entry Terms:

• Nerve, Sciatic
• Nerves, Sciatic
• Sciatic Nerves

See Also:

• Sciatica

All MeSH Categories
Anatomy Category
Nervous System
Peripheral Nervous System
Peripheral Nerves
Spinal Nerves
Lumbosacral Plexus
Sciatic Nerve
Peroneal Nerve
Tibial Nerve
Sural Nerve