Definition : A major nerve of the upper extremity. In humans the fibers of the radial nerve originate
in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via
the posterior cord of the brachial plexus, and supply motor innervation to extensor
muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and
hand. [MeSH];
A major nerve of the upper extremity. In humans the fibers of the radial nerve originate
in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via
the posterior cord of the brachial plexus, and supply motor innervation to extensor
muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and
hand. [MeSH]