We have completed maintenance on DiscoverMagazine.com and action may be required on your account. Learn More

Bundled Up: Close-up View of a Neuron Bundle

By Ernie Mastroianni
Jun 8, 2017 5:00 PMNov 18, 2019 10:55 PM
DSC-CR0817 04 neuron bundle
(Credit: Thomas Deerinck & Mark Ellisman, NCMIR)


Sign up for our email newsletter for the latest science news

Within a brain nerve cell, or neuron, the axon is the long, wiry extension that carries electrical impulses to a neighboring neuron. Just like household wires, these biological versions (shown in orange) need insulation to function properly; without it, central nervous system disorders can develop. A fatty substance called myelin (shown in yellow) serves this important purpose. In this view, magnified 10,000 times, myelin encases the axons of a mouse’s spinal nerve root, part of the spinal cord that communicates with the brain. Thomas Deerinck and Mark Ellisman of the National Center for Microscopy and Imaging Research at University of California, San Diego, took this picture while researching cellular architecture.

1 free article left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

1 free articleSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!


Already a subscriber?

Register or Log In

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Our List

Sign up for our weekly science updates.

To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2024 Kalmbach Media Co.