Median Nerve

Carpal tunnel syndrome
  • Thenar eminence
o  Abduction of the thumb
o  Abductor policis brevis
  • Sensory of palmar surface of the lateral (radial) 3 ½ digits

Ulnar Nerve

  • Hypothenar eminence
  • Adducts the first finger – so try to test adduction of the finger alone
  • Sensory – ulnar 1 ½ digits

Radial Nerve

  • Extension of the wrist – ask the patient to cock the wrist back
  • Dorsal surface of lateral (radial) 3 ½ digits


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