Extensor Pollicis Longus
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Extensor Pollicis Longus insertion
dorsal surface of base of distal phalanx of 1st digit
Extensor Pollicis Longus actions
extension of IP joint of 1st digit, extension of CM, MP joints with continued action, lateral rotation and adduction of CM, MP joints
Extensor Pollicis Longus origin
lateral aspect of middle 1/3 of dorsal surface of ulna, interosseous membrane
Extensor Pollicis Longus innervation
radial nerve (C7-C8)
