Radial nerve

Generality

The radial nerve is an important peripheral nerve of the upper limbs, which originates from the so-called brachial plexus and runs first through the arm and then the forearm.

Having both a motor function and a sensory function, the radial nerve contains the nerve fibers of the spinal roots C5, C6, C7, C8 and T1. Along its path, the nerve in question gives rise to several branches (or branches): the so-called posterior cutaneous nerve of the arm, the branches that innervate the brachial triceps muscle, the lower lateral cutaneous nerve of the arm, the posterior cutaneous nerve of the arm , the deep branch of the radial nerve and the superficial branch of the radial nerve.
The radial nerve can be the victim of injuries, which can alter the sensory or motor functions of the nerve in question.