is the insulatory coating which covers some neurons in the central nervous system interrupted at gaps in-between sheaths which are called Nodes of Ranvier. Myelin sheaths are formed by Schwann cells which secrete myelin.
is the insulatory coating which covers some neurons in the central nervous system interrupted at gaps in-between sheaths which are called Nodes of Ranvier. Myelin sheaths are formed by Schwann cells which secrete myelin.