PSY352H5 Lecture Notes - Lecture 4: Biological Pump, Resting Potential, Action Potential
Document Summary
Synapses are deciding whether to send the information forward or send it back. There are millions of neurones that have millions of synaptic connections that are sending information from neurone to neurone. Neural communication is a series of electrical and chemical events. Neurone a, has electrical transmission along the axon and chemical transmission at the synapse -> Neurone b, has electrical transmission along dendrite, cell, body and axon. Synapses evaluate the signal and decide to send it along or send it back. Thats how we learn and process things around. Neurones are negatively charged inside - this is called resting potential and it is usually around -65mv. Action potential is a quick reversal of the negative resting potential (from -65mv to. +40mv) when the electrical power comes, the sodium channel that is normally closed it opes and allow positive ions to come inside which will increase the positiveness of the inside, and the charge will go up above 0.
