Myelin Sheaths Surrounding Axons Cns #1
by Dennis Kunkel Microscopy/science Photo Library
Title
Myelin Sheaths Surrounding Axons Cns #1
Artist
Dennis Kunkel Microscopy/science Photo Library
Medium
Photograph - Photograph
Description
Cross section of myelin sheaths that surround axons (human central nervous system), coloured transmission electron micrograph (TEM). Myelinated axons are a portion of a neuron, or nerve cell, that is encapsulated by a fatty layer called the myelin sheath. Myelin sheath insulates and protects the axon of the nerve cell, as well as conducts the electrical impulse along the nerve. Nerves are made up of a network of neurons, specialized cells that send electrical signals either from or back to the central nervous system. Myelinated axons conduct these signals from nerve cell to nerve cell along this pathway, ensuring that the message quickly gets where it needs to go. Magnification: x23,315 when shortest axis printed at 25 millimetres.
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September 13th, 2018
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