Research Article
Relationship between the Branching Patterns of the Radial Nerve and Supinator Muscle
Figure 9
A photograph showing the deep branch (arrow) of the posterior interosseous nerve innervating the extensor digitorum (ED). BR: brachioradialis; ECRL: extensor carpi radialis longus; ECRB: extensor carpi radialis brevis; ECU: extensor carpi ulnaris; superficial br. of RN: superficial branch of the radial nerve; asterisk: supinator.