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MedSchool: Ace Your OSCEsThe Medical Company
 
 
 
 
 
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Hand & Wrist Exam
 
 

Thumb Extension

 
 
 
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Overview

    • 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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