Heriditary neuropathies come in many shapes and sizes . charcot - marie - tooth type 2 ( cmt2 ) causes degeneration of peripheral sensory and motor neurons , particularly at the ends of these long axons 遗传性神经病具有多种特点和方式。 2型腓骨肌萎缩症（ cmt 2 ）导致外周特别是长轴突末端的感觉和运动神经元退化。
