NEUR 1201 Lecture Notes - Lecture 2: Axon Hillock, Adenosine, Acetylcholine
14 Sep 2017
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Document Summary
Neurons are built for communication: how does neuron communication actually work. Electrical signaling: the possibility that animal movement may involve electricity was rst suggested by. He noticed that a dead frogs legs could be made to twitch by touching them with a mental probe. This was due to a small electric current created by the probe: muscles could be stimulated directly, but the effect was even stronger if the nerve leading to the muscle were stimulated. It was not until eh development of atomic theory that a plausible mechanism for this was possible. Electricity: at a simple level, electricity is simply the movement of electrically charged particles from one place to another. The tendency to move is called electrical potential and is measured in volts. Life & energy: a general rule of nature is that if you separate things, not move them out of equilibrium, they will tend to re-equilibrate. It doesn"t really matter what type of force is involved.
