Main Model
86 Extensor carpi radialis brevis
Origin:
Lateral epicondyle of humerus (common extensor origin)
Insertion:
Dorsal aspect of base of 3rd metacarpal
Blood Supply:
Radial artery, radial recurrent artery
Innervation:
Deep branch of radial nerve (C7, C8)
Main Action:
Extend and abduct hand at the wrist joint