g-ratio (inner diameter of myelin sheath/outer diameter)

Range ~0.6 unitless
Organism Metazoa animals
Reference Harvey A. Swadlow and Stephen G. Waxman (2012), Scholarpedia, 7(6):1451., Axonal conduction delays, link 2nd paragraph
Primary Source Waxman, S. G. and Bennett, M. V. L. Relative conduction velocity of small myelinated and non-myelinated fibres in the central nervous system. Nature New Biol., 238 217-219, 1972.PubMed ID4506206
Comments "In general, the thickness of the myelin sheath is roughly proportional to the diameter of the ensheathed axon, with the g-ratio (inner diameter of myelin sheath/outer diameter) being close to 0.6 (primary source)."
Entered by Uri M
ID 110610