Multiple choice

The diameter of axon is regulated by ____________________________.

  1. endoneurium

  2. epineurium

  3. perineurium

  4. neurolemma

  5. neurofibrils
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Neurofilaments are the intermediate filaments found in neurons. They are a major component of the neuronal cytoskeleton, and are believed to function primarily to provide structural support for the axon and to regulate axon diameter. Neurofilaments are composed of polypeptide chains or subunits which belong to the same protein family.

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