These cells are essential for neurons to communicate with one another because they insulate the long axons between neurons, preventing the electrical signal carried by the axons from dissipating.

• 这些细胞会包围在神经细胞的长轴突外，使它们彼此绝缘，如此可防止轴突所携带的电讯号消散开来，因此寡突细胞是神经细胞互相沟通所不可或缺的。