This black and white electron micrograph shows a close-up view of a myelin sheath. Multiple cross-sections of myelinated nerve fibers appear as circular or oval shapes, with varying degrees of darkness. These are wrapped in layers of myelin, the insulating material that greatly increases the speed of nerve impulse transmission. The spaces between the fibers represent the axon's contents. The image has a grainy texture typical of electron microscopy.
Delete Document
Are you sure you want to delete this document? This action cannot be undone.
