Myelin is a concentrically laminated membrane structure surrounding an axon around which lamellae (or cellular protrusions) repeat radially at a period of about 12 nm (Waxman, Kocsis & Stys 1995 ...

Opening and closing ion channels changes the membrane potential. When the neuron is triggered, it activates voltage-gated sodium channels at the beginning of the axon. This causes an influx of ...