The last post reviewed the origins and properties of the resting membrane potential. Specifically, we are most interested in the membrane potential of neurons because they have an activated state that leads to signaling between neurons. Signaling from one neuron is achieved via an action potential from the cell body (soma) down its axon to synapses with other neurons. There are several good summary videos available online. Try them all to reinforce your knowledge.
Finally, in this post we get our first real look at synapses and excitatory and inhibitory neurotransmitters as part of a graded potential:
Now that you've seen the electrochemical action potential, in the next couple of posts we can dig more into neuron-neuron signaling, including synapses and
the role of chemical neurotransmitters.
BONUS: a speedy review. All familiar stuff now, right?
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