Seddon-Sunderland Nerve Injury Quiz
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Questions and Answers

What does C represent in the Seddon classification?

  • Neuropraxia
  • Axonopraxia
  • Axonotmesis (correct)
  • Neurotmesis

What does A represent in the Seddon classification?

  • Neurotmesis
  • Axonopraxia
  • Neuropraxia (correct)
  • Axonotmesis

What does C represent in the Seddon classification related to damage?

  • Axonopraxia
  • Neurotmesis
  • Axonotmesis (correct)
  • Neuropraxia

What does C indicate in the Seddon classification regarding nerve damage?

<p>Axonotmesis (A)</p> Signup and view all the answers

What does D denote in the Seddon classification?

<p>Neurotmesis (B)</p> Signup and view all the answers

What does E represent in the Sunderland classification?

<p>Grade 5 (D)</p> Signup and view all the answers

What does D represent in the Sunderland classification?

<p>Grade 4 (B)</p> Signup and view all the answers

What does C indicate in the Sunderland classification regarding nerve damage?

<p>Grade 3 (C)</p> Signup and view all the answers

What does B signify in the Sunderland classification?

<p>Grade 2 (D)</p> Signup and view all the answers

What does A signify in the Sunderland classification?

<p>Grade 1 (B)</p> Signup and view all the answers

Study Notes

Seddon-Sunderland Classification of Nerve Injury

  • Seddon Classification focuses on the severity of nerve injuries:

    • Neuropraxia: Nerve conduction block without structural damage; axon is intact.
    • Axonotmesis: Axon and endoneurium are damaged; perineurium remains intact.
    • Neurotmesis: Complete nerve transection; all structures including axon, endoneurium, and perineurium are disrupted.
  • Key Types in Seddon Classification:

    • C: Refers to Axonotmesis (axon damaged, endoneurium intact).
    • A: Denotes Neuropraxia (focal demyelination).
    • D: Addresses Neurotmesis (complete nerve transection).

Sunderland Classification

  • Sunderland Classification builds on Seddon by categorizing nerve injuries into grades:

    • Grade 1: Neuropraxia; focal segmental demyelination with intact structure.
    • Grade 2: Axon injured, endoneurium intact.
    • Grade 3: Axon and endoneurium damaged; perineurium intact.
    • Grade 4: Axon, endoneurium, and perineurium damaged; epineurium intact.
    • Grade 5: Complete nerve transection with all components involved.
  • Key Types in Sunderland Classification:

    • E: Corresponds to Grade 5 (complete nerve transection).
    • D: Relates to Grade 4 (axon, endoneurium, and perineurium damaged).
    • C: Represents Grade 3 (axon and endoneurium damaged).
    • B: Aligns with Grade 2 (axon damaged, endoneurium intact).
    • A: Indicates Grade 1 (focal segmental demyelination).

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Description

Test your knowledge of the Seddon-Sunderland classification of nerve injuries with this quiz. Each question presents a definition related to different types of nerve injury classifications, challenging your understanding of neuropraxia, axonotmesis, and more.

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