What is the function of myelin quizlet?

Myelin is a fatty substance that insulates nerve fibers in the brain and spinal cord. Its main function is to increase the speed and efficiency of neural communication by allowing electrical impulses to travel more quickly along the nerve fibers. Myelin also helps to protect the nerve fibers from damage and aids in the regeneration of damaged nerve tissue. Deficiencies in myelin formation or damage to existing myelin can lead to neurological disorders such as multiple sclerosis.