Definition : 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. [MeSH];
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. [MeSH]