autonomic-nervous-system
3 articles tagged with #autonomic-nervous-system
Human Body
How the Nervous System Works: Signals, Reflexes, and the Brain-Body Connection
A signal travels from your fingertip to your spinal cord and back in under 20 milliseconds — before your brain has even registered the sensation. The nervous system processes roughly 100 billion neurons, each connected to thousands of others, operating at speeds up to 120 meters per second. Here is how it all works.