Short abductor muscle of thumb

short abductor muscle of thumb --> abductor pollicis brevis

(Science: anatomy, muscle) origin, tubercle of trapezium and flexor retinaculum; insertion, lateral side of proximal phalanx of thumb; action, abducts thumb; nerve supply, median.

Synonym: musculus abductor pollicis brevis, short abductor muscle of thumb.

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