M. Abductor Pollicis Longus
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Insertion
Base 1st metacarpal
Classification
Deep post. Extensor
Trajectory
Down + out Tendon lat. border forearm --> 1st extensor compartment
Innervation
N. Radial
Fonction
Thumb: abducteur Hand: radial abduction Acts as a dynamic collateral lig. wrist!!
Origin
middle 1/3 post.surface radius + ulna + interosseous mm.