A white, fatty material, composed of lipids and lipoproteins, that surrounds the axons of nerves
A soft white substance constituting the medullary sheaths of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat
A layer made up of protein and lipids (i e , fatty substances) that forms a sheath around nerves and speeds the transmission of impulses along nerve cells
The fatty substance that covers myelinated nerves Myelin is a layered tissue surrounding the axons or nerve fibers This sheath acts as a conduit in an electrical system, allowing rapid and efficient transmission of nerve impulses Myelination refers to the process in which nerves acquire a myelin sheath
One of a group of phosphorized principles occurring in nerve tissue, both in the brain and nerve fibers
A substance made of protein and lipid (fat) that protects the nerves, especially in the brain
A lipid material secreted in layers around axons by Schwann cells in the PNS and oligodendroglia in the CNS This wrapping insulates electrically the axon from the surrounding extracellular environment, resulting in saltatory conduction between Nodes of Ranvier This in turn increases axonal conduction velocity
A soft, white coating of nerve fibers in the central nervous system, that is composed of lipids (fats) and protein Myelin serves as insulation and as an aid to efficient nerve fiber conduction When myelin is damaged in MS, nerve fiber conduction When myelin is damaged in MS, verve fiber conduction is faulty or absent Impaired bodily functions or altered sensations associated with those demyelinated nerve fibers are identified as symptoms of MS in various parts of the body
a fatty covering insulating nerve cell fibers in the brain and spinal cord, myelin facilitates the smooth, high-speed transmission of electrochemical messages between these components of the central nervous system and the rest of the body In MS, myelin is damaged through a process known as demyelination, which results in distorted or blocked signals
The white substance that coats our nerves, allowing them to conduct impulses Without myelin the brain cannot transmit/receive messages to/from other parts of the body Myelin is primarily composed of fats and proteins
The insulating envelope of myelin that surrounds the core of a nerve fiber or axon and facilitates the transmission of nerve impulses. In the peripheral nervous system, the sheath is formed from the cell membrane of the Schwann cell and, in the central nervous system, from oligodendrocytes. Also called medullary sheath