Final answer:
Luigi Galvani, an Italian physician and scientist, was the first to measure the speed of conduction in the nervous system.
Step-by-step explanation:
Luigi Galvani, an Italian physician and scientist, was the first to measure the speed of conduction in the nervous system. His accidental discovery of the twitching of frog legs when in contact with an iron scalpel led to his research on electrical conductivity in muscles and nerves. Galvani believed that animal tissues contained a form of electricity similar to natural electricity.