The brachial plexus originates from five nerves, which come out of spinal cord through gaps between the neck bones (vertebrae) and supply the muscles and sensation to the arm
All or parts of the arm and hand become paralysed and numb, sometimes with severe pain. Most common as a "closed injury" after a serious impact to the shoulder or neck, usually following a motorbike accident, but also from a sporting injury.
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The London Nerve Centre offers advice and treatment for conditions that affect the nerves.