Brachial Plexus Lower Trunk Posterior Division
Origin
Brachial Plexus Lower Trunk
Shared Innervation
Triceps Brachii
Extensor Digitorum Communis
Extensor Digiti Minimi
Extensor Carpi Ulnaris
Anconeus
Abductor Pollicis Longus
Extensor Pollicis Brevis
Extensor Pollicis Longus
Extensor Indicis
Outcome: All Posterior divisions join to form the
Posterior Cord
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