Motor neurons carry movement instructions from the brain and spinal cord to muscles throughout the body. Their nerve fibers are the longest in the body — a single axon can stretch from the base of the spinal cord all the way to the toes.
Brain Bytes showcase essential facts about neuroscience.
Design by A. Tong
Design by Adrienne Tong.
Image: Fayette A. Reynolds, Berkshire Community College Bioscience Image Library
About the Author
Calli McMurray
Calli McMurray is the Media and Communications Assistant at SfN. She graduated from the University of Texas at Austin in 2019 with a Bachelor of Science in Neuroscience.