Adductor Pollicis Muscle
Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.
The adductor pollicis muscle is a bifurcated muscle of the hand that serves to pull the thumb toward the palm. Adductor muscles move a limb toward the central line of the body or a digit toward the axis of a limb. It comes from the Latin word, adductus, meaning one that draws to. An adductor is also a muscle that closes the valves in a clam or other bivalve mollusk, but it isn't the one that snaps the human mouth shut.
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