Length of myelinated nerve fibers in brain

Range 150,000-180,000 km
Organism Human Homo sapiens
Reference link
Primary Source Pakkenberg B, Gundersen HJ, Mortensen EL, Lauritzen MJ, Jeune B, Regeur L, West MJ, Schwartz TW. [The normal brain: a new knowledge in different fields] Ugeskr Laeger. 1997 Feb 3 159(6):723-7. AND Pakkenberg B, Pelvig D, Marner L, Bundgaard MJ, Gundersen HJ, Nyengaard JR, Regeur L. Aging and the human neocortex. Exp Gerontol. 2003 Jan-Feb38(1-2):95-9.PubMed ID9045457, 12543266
Comments Many useful brain facts and references at the cited website. See Drachman 2005 PMID 15985565 p.2004 left column top paragraph:"The white matter of the brain contains approximately 150,000 to 180,000 km of myelinated nerve fibers at age 20, connecting all these neuronal elements."
Entered by Daniel Ramot
ID 100692