A blocking of NEURAL CONDUCTION in the network of nerve fibers innervating the UPPER EXTREMITY.

Synonyms: Plexus Blockade, Brachial, Anesthesia, Brachial Plexus, Brachial Plexus Anesthesia, Brachial Plexus Blockade, Brachial Plexus Block, Brachial Plexus Blocks, Block, Brachial Plexus, Plexus Blockades, Brachial, Blockade, Brachial Plexus, Brachial Plexus Blockades, Blocks, Brachial Plexus, Blockades, Brachial Plexus