Nerve Root Function Testing
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Questions and Answers

Which nerve root is associated with the assessment of the upper lateral arm and elbow flexion?

  • L2
  • S1
  • C5 (correct)
  • C6
  • What muscle response is tested for the C6 nerve root?

  • Triceps elbow extension
  • Lateral forearm, thumb, and first finger (correct)
  • Biceps reflex
  • Flexor digitorum profundis
  • Which nerve root involves testing the middle finger and triceps muscle?

  • C5
  • L2
  • C7 (correct)
  • C8
  • What is a specific test maneuver associated with the C8 nerve root?

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    Which nerve root is responsible for testing plantar flexion and the Achilles reflex?

    <p>S1</p> Signup and view all the answers

    Study Notes

    Nerve Root Function Testing

    • C5 (Vs. Axillary):

      • Upper lateral arm; military patch
      • Bicep elbow flexion; bicep reflex
      • Pull Elbow
    • C6 (Vs. Median):

      • Lateral forearm; thumb 1st finger
      • Brachioradialis; wrist extension
      • Brachio-reflex (reflex)
      • Pull Wrist (action)
      • Palmer surface, thumb to 4th finger, thumb opposition, weak wrist flexion; No reflex
    • C7 (Vs. Radial):

      • Middle finger
      • Tricep elbow extension; tricep & wrist extension; tricep reflex
      • Push Elbow (action)
      • No reflex
    • C8 (Vs. Ulnar):

      • 4th and 5th finger to pisiform
      • Flexor digitorum profundis; no reflex
      • Spread Fingers (action);
      • Bisects 4th finger & medial aspect of hand; finger & wrist flexion; add & abd finger ulnar deviation
    • L2 (Vs. Femoral):

      • Upper thigh candy cane
      • Hip flexor; no reflex
      • Spread Fingers (action)
      • Front of thigh, to lower leg; hip flexion & knee extension
    • L5 (Vs. Peroneal):

      • Lateral lower leg; dorsum of foot
      • Hallux (big toe) extension only; no reflex
      • Resist Big Toe (action)
      • Lateral lower leg; dorsum of foot; toe flexion; ankle dorsi-flexion; no reflex
    • S1 (Vs. Tibial):

      • Sole of foot up to gastro; plantar flexion
      • Achilles reflex; Tip Toes (action)
      • Sole of foot only; plantar and dorsi-flexion; no reflex

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    Description

    This quiz focuses on nerve root function testing, specifically examining C5 to C8 and L2 nerves. It covers sensory and motor functions, reflex actions, and specific muscle tests. Participants will need to identify nerve root functions and their associated actions.

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