A neuron's axon can be up to 1 meter long.
Notes on verification
Confirmed by multiple independent scientific and educational sources including NCBI, university resources, and medical institutions, consistently citing sciatic nerve axons reaching up to 1 meter in length. [tier=gold indep_score=0.9 clusters=4 claim_tier=notable]
Sources
- 11 Interesting Facts About the Brain and Nervous System - Healthline (seed:health_and_medicine)
- https://www.ncbi.nlm.nih.gov/books/NBK554388/ (corroboration)
- https://faculty.washington.edu/chudler/what.html (corroboration)
- https://mstrust.org.uk/a-z/nerve-cells-neurons (corroboration)
- https://qbi.uq.edu.au/brain/brain-anatomy/axons-cable-transmission-neurons (corroboration)