Summary Extensor Carpi Radialis Brevis Origin Lateral epicondyle of humerus Insertion Base of 3rd metacarpal Action Extend and abduct hand at wrist joint Innervation Deep branch of radial nerve (C7, C8) Arterial Supply Radial artery
Extensor Carpi Radialis Brevis summary OBC What is the origin? Origin Lateral epicondyle of humerus Show Bullets