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 is interrupted at intervals along the length of the axon by gaps known as nodes of Ranvier. Myelin is an electrical insulator that serves to speed the conduction of nerve impulses (see saltatory conduction). pial sheath the innermost of the three sheaths of the optic nerve. root sheath the epidermic layer of a hair follicle. sheath of Schwann neurilemma.