au ▁prote ins ▁can ▁aid ▁in ▁the ▁stabil ization ▁of ▁micro t ub ules ▁by ▁binding ▁to ▁the ▁micro t ub ules , ▁protect ing ▁them ▁from ▁micro t ub ule ▁serving ▁prote ins . ▁Even ▁after ▁the ▁micro t ub ules ▁have ▁stabil ized , ▁the ▁c yt os ke leton ▁of ▁the ▁neur on ▁remains ▁dynamic . ▁Act in ▁fil aments ▁retain ▁their ▁dynamic ▁properties ▁in ▁the ▁neur ite ▁that ▁will ▁become ▁the ▁ax on ▁in ▁order ▁to ▁push ▁the ▁micro t ub ules ▁bund les ▁out ward ▁to ▁extend ▁the ▁ax on . ▁In ▁all ▁other ▁neur ites ▁however , ▁the ▁act in ▁fil aments ▁are ▁stabil ized ▁by ▁my os in . ▁This ▁prevents ▁the ▁development ▁of ▁multiple ▁ax ons . ▁ ▁The ▁neural ▁cell ▁ad hes ion ▁mole c ule ▁N - C AM ▁simultaneously ▁comb ines ▁with ▁another ▁N - C AM ▁and ▁a ▁fib ro blast ▁growth ▁factor ▁re ceptor ▁to ▁stim ulate ▁the ▁ty ros ine ▁kin ase ▁activity ▁of ▁that ▁re ceptor ▁to ▁indu ce ▁the ▁growth ▁of ▁neur ites . ▁ ▁There ▁are ▁several ▁software ▁k its ▁available ▁to ▁facil itate ▁neur ite ▁trac ing ▁in ▁images ▁( see ▁external ▁links ). ▁ ▁We ak ▁end ogen ous ▁electric ▁fields ▁may ▁be ▁used ▁to ▁both ▁facil itate ▁and ▁direct ▁the ▁growth ▁of ▁pro jections ▁from ▁cell ▁som a ▁neur ites , ▁EF s ▁of ▁moder ate ▁strength ▁have ▁been ▁used ▁to ▁direct ▁and ▁enh ance ▁neur ite ▁out g row th ▁in ▁both