Thanks to it the substance
Also at early stages of development substance under the name a myelin forms a dense cover round axons.
As a result of it about tsessa branches which transmit signals of nervous cages are isolated, increasing the speed and efficiency of dialogue between cages.
Miyeli the nization proceeds before the termination of teenage age and the first years of adult life.
Thanks to it the substance called develops white substance of a brain.
It consists of bunches of axons, which soyed nyat various sites of a brain..