National Board of Chiropractic Examiners (NBCE) Practice Test

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Study for the National Board of Chiropractic Examiners Test. Enhance your knowledge with flashcards and multiple choice questions, each question comes with hints and explanations. Be prepared for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the most likely result of direct nerve root compression?

  1. Increased conduction

  2. No change in function

  3. Decreased conduction

  4. Enhanced reflexes

The correct answer is: Decreased conduction

Direct nerve root compression typically leads to decreased conduction. When a nerve root is compressed, it can interfere with the normal transmission of impulses along that nerve. This interference reduces the ability of the nerve to effectively send signals, which in turn diminishes the conduction velocity and overall efficiency of nerve signaling. In cases of compression, the nerve may experience demyelination or other structural changes that impair its function, contributing to diminished sensory and motor responses. This effect can manifest as pain, weakness, or sensory deficits in the areas supplied by the affected nerve root, demonstrating the impact of compression on neuronal conduction. The options indicating increased conduction, no change in function, or enhanced reflexes do not accurately reflect the physiological outcomes associated with nerve root compression. Instead, the predominant effect is a reduction in the conductive capability of the nerve root due to the mechanical and possibly inflammatory changes imposed by the compression.