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Updated: Dec 28 2021

Extensor Pollicis Brevis

Images
https://upload.orthobullets.com/topic/10038/images/extensor-pollicis-brevis.jpg
  • Summary
      • Extensor Pollicis Brevis
      • Origin
      • Posterior surfaces of radius and interosseous membrane
      • Insertion
      • Base of proximal phalanx of thumb
      • Action
      • Extends proximal phalanx of thumb at metacarpophalangeal joint
      • Innervation
      • Posterior interosseous nerve (C7, C8)
      • Arterial Supply
      • Posterior interosseous artery
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