Myelin

The insulating sheath that surrounds nerve cells, enabling them to conduct impulses between the brain and other parts of the body. When myelin becomes damaged, neurodegenerative autoimmune diseases, such as multiple sclerosis, can develop.

Fatty, white substance forming medullary sheath around nerve.

The protective fat and protein covering around the axons of many nerves.

The white, fatty insulating material that surrounds the axons of many nerve cells.

The substance of the cell membrane of Schwann cells that coils into a protective covering around nerve fibres called a myelin sheath.

Complex material, containing phospholipids and proteins, that forms a sheath around the axons of certain nerve fibers, called myelinated (or medullated) nerve fibers. The myelin is produced by Schwann cells along the axon. Myelinated nerve fibers conduct impulses more rapidly than do unmyelinated fibers.

White, fatty substance that forms the nerve sheath.

The fatty substance covering and protecting nerves. The sheath of myelin formed around the nerves speeds the transmission of electrical impulses along the nerve cells and acts as an electrical insulator.

A complex material formed of protein and ‘phospholipid that is laid down as a sheath around the axons of certain neurons, known as myelinated (or medullated) nerve fibers. The material is produced and laid down in concentric layers by Schwann cells at regular intervals along the nerve fiber. Myelinated nerves conduct impulses more rapidly than nonmyelinated nerves.

A substance made up of protein and phospholipid that forms the sheath surrounding the axons of some neurons. These are described as myelinated or medullated nerve fibres, and electric impulses pass along them faster than along non-myelinated nerves. Myelin is produced by Schwann cells which occur at intervals along the nerve-fibre.

The phospholipid-protein of the cell membranes of Schwann cells (peripheral nervous system) and oligodendrocytes (central nervous system) that forms the myelin sheath of neurons. It acts as an electrical insulator and increases the velocity of impulse transmission. Another difference between central and peripheral myelin sheaths is that a single oligodendroglial cell can put out many tongues of cell membrane and form separate myelin sheaths for many different axons, whereas each Schwann cell ensheaths only one axon.

A soft, white coating of nerve fibers in the central nervous system, 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 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.

The fatty material with which many axons are coated; it insulates the axon and increases the speed at which an impulse travels.

Fatty sheath that surrounds axons and enhances the speed of conduction of action potentials.

Myelin, the protective covering enveloping nerves, plays a crucial role in facilitating the rapid and efficient transmission of impulses along those nerves. It acts as a vital factor in enhancing the speed and effectiveness of nerve communication. However, when the myelin sheath undergoes damage, it leads to disruptions in nerve communication, hampering the smooth flow of impulses.