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

Anatomy Home Page