Definitions for radial nerve
radial nerve, nervus radialis, musculospiral nerve(noun)
largest branch of the brachial plexus; extends down the humerus to the lateral epicondyle where it divides into one branch that goes to the skin on the back of the hand and another that goes to the underlying extensor muscles
A large nerve, carrying both sensory and motor neurones, that supplies the dorsal aspect of the forearm and arm
U.S. National Library of Medicine
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.
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