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Abductor Pollicis Brevis Muscle

Last Updated: Jun 11, 2015

The abductor pollicis brevis muscle is one of the three muscles of the thenar eminence of the hand and serves to pull the thumb away from the palm. Abduction refers to movement of a limb away from the central line of the body or of a digit away from the axis of a limb. Muscles that carry out this type of movement are called abductor muscles.