OUR knowledge of impulse patterns in the different types of afferent nerve fibres is based chiefly on animal experiments. It is true that Hensel and Boman 1 recorded action potentials from single ...

The observation that drugs could mimic the effects of nerve stimulation was ... did not believe that chemical transmission was rapid enough to account for impulse transmission in the brain.

The nerve cell is covered with a fatty sheath, which insulates the nerve cell and speeds up the nerve impulse. Muscle cells contain filaments of protein that slide over each other to cause muscle ...