The development of alpha and gamma motoneuron fibres in the rat. II. A comparative ultrastructural study of their central and peripheral myelination.

@article{Fraher1985TheDO,
  title={The development of alpha and gamma motoneuron fibres in the rat. II. A comparative ultrastructural study of their central and peripheral myelination.},
  author={John P. Fraher and G F Kaar},
  journal={Journal of anatomy},
  year={1985},
  volume={141},
  pages={89-103}
}
The abnodal myelin sheaths of the internodes immediately central and peripheral to the transitional node possess a decremental segment over which sheath thickness gradually decreases in the direction of the paranode. This may represent a sustained morphological immaturity of the sheath. Alpha and gamma fibre groups have different sheath thickness to axon circumference relationships at each age during development and at maturity. Gamma fibres have relatively thicker sheaths than alpha fibres. In… CONTINUE READING