But entails enormous communication network. All animals except sponges have both. The neurons of one human cerebral cortex would reach over 250,000 miles if placed end to end. All neurons fire same size signal. Only difference is frequency .
Death is a great high.
For long axons, this can take several seconds. For faster transmission speeds, need to use Saltatory Conduction . Causes depolarization of muscle cell membrane, which passes down muscle cell. So must quickly get rid of AcCh. Enzyme Acetylcholinesterase is present in synapse, breaks down AcCh.