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Hand & Wrist Exam

Thumb Extension

January 1st, 2017


  • How to Assess

  • The thumb is extended posteriorly, toward the palm.
  • Muscles Involved

  • Extensor pollicis longus, extensor pollucis brevis
  • Normal Range of Motion

  • 10°
  • Myotome

  • C8Radial nerve
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