We know that neurons are encapsulated by myelin. But what makes the myelin?┬áThe brain contains two major classes of cells: neurons and glia. Glia are responsible for creating the myelin sheath, as well as having many other functions. There are different kinds of glia, including Schwann cells, oligodendrocytes, astroctytes, microglia, and more. The Schwann cells … Continue reading Myelin