Hand Exam: Motor 1/13 – Flexor Pollicis Longus (FPL)

Flexor Pollicis Longus (FPL)

  • Instruct the patient “Bend the tip of your thumb”
  • Insertion: distal phalanx of thumb
  • Action: flexion of thumb IP joint
  • Innervation: Median nerve

The 13 muscle groups you need to test in the hand exam:

  1. FPL
  2. FDP
  3. FDS
  4. Thenar muscles
  5. Interosseous
  6. Hypothenar muscles
  7. EPB and APL
  8. EPL
  9. EDC
  10. EIP and EDM
  11. ECRL and ECRB
  12. ECU
  13. Adductor Pollicis


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