ISIS death toll from MOAB strike in Afghanistan rises to 94 according to local reports. Last Thursday, the United States deployed its largest non-nuclear weapon against an underground ISIS stronghold in Afghanistan.
The myelin sheath is a layer of fat and protein that covers the axon of a neuron, or nerve cell.The axon, which is a long, thin projection, is designed to carry electrical signals from a neuron to other cells.he myelin sheath is a layer of fat and protein that covers the axon of a neuron, or nerve cell.
It's not clear what causes it, and there's no known cure. Myelin and Your Nerves. The myelin sheath wraps around the fibers that are the long threadlike part of a nerve cell. The sheath protects these fibers, known as axons, a lot like the insulation around an electrical wire. When the myelin sheath is healthy, nerve signals are sent and received quickly. But if you have MS, your body's immune system treats myelin as a threat. It attacks both the myelin and the cells that make it. When that happens, the nerves inside the sheath can be damaged. That leaves scars on your nerves -- known as sclerosis -- and that makes it harder for them to carry the messages that tell your body to move. Myelin Research