abductor pollicis brevis

From Aaushi
Jump to navigation Jump to search

Introduction

Superficial thenar muscle.

Origin

tubercle of trapezium & flexor retinaculum

Insertion

lateral side of the proximal phalanx of the thumb

Action

abducts thumb

Innervation

median nerve

More general terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999