What is another name for myelin sheath?

The process of generating myelin is called myelination or myelinogenesis. In the CNS, cells called oligodendrocyte precursor cells (OPCs; the precursors of oligodendrocytes) differentiate into mature oligodendrocytes, which form myelin.

What does myelin sheath mean?

insulating layer
Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells. If myelin is damaged, these impulses slow down.

Is medullary sheath and myelin sheath same?

An obsolete term for myelin sheath.

What is an example of myelin sheath?

For example, some motor neurons in the spinal cord have axons that exceed 1 m in length, connecting the spine to the lower limb muscles. Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon.

How do you use myelin sheath in a sentence?

Myelin-sheath sentence example The Schwann cell has an extensive cytoplasm which allows it to wrap a myelin sheath around nerve axons. This was causing pressure on the nerve root causing loss of myelin sheath . Less commonly the problem lies in the insulating myelin sheath .

What disorder is associated with deterioration of myelin sheath?

Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system. In this disorder, your immune system attacks the myelin sheath or the cells that produce and maintain it. This causes inflammation and injury to the sheath and ultimately to the nerve fibers that it surrounds.

What is nodes of Ranvier?

Definition of Terms Nodes of Ranvier. These are the gaps formed between the myelin sheath where the axons are left uncovered. Because the myelin sheath is largely composed of an insulating fatty substance, the nodes of Ranvier allow the generation of a fast electrical impulse along the axon.