"origin: lateral epicondyle of humerus"
"insertion: tendon of extensor digitorum muscle for the 5th digit"
"arterial supply: radial recurrent artery, posterior interosseous artery"
"innervation: posterior interosseous nerve (C7 and C8), a continuation of the deep branch of the radial nerve (C7, C8)"
"action: extension in metacarpophalangeal joint and wrist joint"
"origin: lateral epicondyle of humerus"
"insertion: tendon of extensor digitorum muscle for the 5th digit"
"arterial supply: radial recurrent artery, posterior interosseous artery"
"innervation: posterior interosseous nerve (C7 and C8), a continuation of the deep branch of the radial nerve (C7, C8)"
"action: extension in metacarpophalangeal joint and wrist joint"