This four minute video is an eye-catchy animation on the mechanisms associated with Action Potential. It briefly summarizes all the concepts, making the topic almost impossible to forget! Timeline: 00:05 Action Potential - Introduction 00:16 Ion Channels 00:25 Resting Potential 01:00 Threshold Potential and Depolarized State 01:45 Repolarized State 02:20 Hyperpolarized State 02:45 Refractory Period 03:04 Conclusion