What is myelin?

@article{Hartline2008WhatIM,
  title={What is myelin?},
  author={Daniel K. Hartline},
  journal={Neuron glia biology},
  year={2008},
  volume={4 2},
  pages={
          153-63
        }
}
  • D. Hartline
  • Published 1 May 2008
  • Biology
  • Neuron glia biology
The evolution of a character is better appreciated if examples of convergent emergence of the same character are available for comparison. Three instances are known among invertebrates of the evolution of axonal sheaths possessing the functional properties and many of the structural properties of vertebrate myelin. Comparison of these invertebrate myelins raises the question of what structural features must a sheath possess in order to produce the two principal functional characteristics of… 

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