flexor pollicis longus (muscle)
flex·or pol·li·cis lon·gus (mus·cle)
[TA]muscle of deep layer of anterior (flexor) compartment of forearm; origin, anterior surface of middle third of radius; insertion, palmar aspect of distal phalanx of thumb; action, flexes thumb at interphalangeal joint; nerve supply, median (anterior interosseous).
Synonym(s): musculus flexor pollicis longus [TA], long flexor muscle of thumb, musculus flexor longus pollicis
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