
Topography of locus coeruleus norepinephrine neurons in the mouse brain. Approximately 100 fully reconstructed neurons are superimposed. Neurons are colored by their locations. Dorsal neurons (purple) project to the front of the brain, ventral (yellow) ne

Reconstruction of 70 cm LC neuron in mouse, the longest ever measured

Sue Su, scientist at the Allen Institute
One axon measured 70.32 centimeters, leading to the longest single neuron ever measured in a mouse.
The findings suggest the brain's norepinephrine system is far more like a targeted postal network than a foghorn”— Karel Svoboda, director of Neural Dynamics at the Allen Institute
SEATTLE, WA, UNITED STATES, September 17, 2026 /EINPresswire.com/ -- Deep in the brainstem sits a small but important cluster of neurons known as the locus coeruleus (LC), Latin for “blue place.” It makes up a tiny