Body Trivia : Speed of message in human nervous system

How fast do messages transmitted by the human nervous system travel?



The transmission speed (conduction rate) is different by the kind of the nerve fiber.

The speed of the fastest fiber (motion fiber of skeletal muscle, etc.) is 120m per second (432 kilos per hour).

The slow fiber (sympathetic nerve, etc.).is 50cm per second (1.8 kilos per hour).