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2-Minute Neuroscience: Myelin


In my 2-Minute Neuroscience videos I simplistically explain neuroscience topics in 2 minutes or less. In this video, I discuss myelin, an insulatory layer that covers the axons of many neurons in the nervous system. I describe myelin’s role in promoting efficient neuronal signaling, and I discuss its structure, which consists of stretches of myelin called internodes surrounding intermittent gaps called nodes of Ranvier. I also discuss the cells that form myelin: Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.

[Video and text source: Neuroscientifically Challenged You Tube channel]