LITFL » Exams » ACEM Primary Examination » Anatomy VIVA by Year » Anatomy 2009.2 08

Anatomy 2009.2 08

Question 1

Identify the extensor muscles of the forearm at the level of the wrist

Model: Arm. Extensor group of forearm muscles

  1. APL 23, epb 22
  2. ECRL 19, ecrb 18
  3. EPL 21
  4. ED 27, ei
  5. EDM
  6. ECU 16

Pass criteria:

  • 7 out of 9 to pass

Question 2

What is the nerve supply of this compartment?

  • Radial nerve and its deep branch becoming post interosseus nerve

Pass criteria:

  • Radial n. to pass

Question 3

Describe how the action of these muscles produces thumb movement

  • APL  abduction and extension at carpometacarpal joint
  • EPL  extension at IP joint
  • EPB  extension at MCP

Pass criteria:

  • All with prompts

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About Mike Cadogan

Emergency physician with a passion for medical informatics and medical education. Co-founder of HealthEngine, iMeducate, and the GMEP. He writes more eclectically on the web as @sandnsurf | + Mike Cadogan | Contact