Bbu phle node of ranviour and..mylinated sheat ka difination or ....... Part o body jha ..mylinated sheat nhi rhta h oo pta kr k bato.... Or 100% mylinated rhyga toh ...nerves single conduct krega ...iss sab k answer btao. .fir mixxer m dhyan dena.... Bbu pdhh.lo...maukha bdd m......pachtaogy