Medical Term:

flexor pollicis longus (muscle)

 

Definition: 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 longusTA, long flexor muscle of thumb, musculus flexor longus pollicis

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