le Nerve Cell & Neucleus: reservoir of food material aids nutrition and growth of entire neurone~-less than 1/10 mm in diameter (fiber - sometimes 1 meter hong) re 2. Axis eylinder-soentral thread of nerve material in fiber on which implulse travels-simpulse travels about 100 feet per second. Se Newrilemmas-protects exis cylinder most of its length 46 etadiary sheath=-white fatty sheath within neuroma insuletes eontral thread and prevents impulses from spreading to other fibers. Ss Dondritess-paths of impulses to cell. | Ge Axones--path of impulse poasing from cell.