Extensor Carpi Radialis Longus Anatomy
Origin: Humerus (lateral supracondylar ridge, distal 1/3)
Common forearm extensor tendon
Lateral intermuscular septum
Insertion: 2nd metacarpal bone (base on radial side of dorsal aspe
Innervation: Cervical root(s): C6 and C7
Nerve: radial nerve (lateral muscular branch)
Diagrams & Photos
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ECRL