Now that we’ve discussed the action potential, it’s time to find out what allows it to propagate so quickly down certain axons: myelin! To prepare for class on April 11th, please read chapter 10 in Basic Neurochemistry through the subsection “Myelin Basic Proteins” (up to page 190 in the printed book) and take another look at figure 6.9 in The Machinery of Life; what can you identify in that figure based on the reading?

Wikipedia and other internet resources, like this article from Network Glia, might once again be helpful.