They resound down the tails, known as axons.
It results from a loss of resting potential
And in communication is entirely crucial.
The AP, indeed, is sent, RRRANNGGG, down the tail
And reverses the RP without fail.
It’s beginning to be understood in our nation
That it occurs because of depolarization.
See, neurons are like all other cells
With a membrane that separates two different gels.
On one side of this membrane rests two ions.
There’s Cl- and Na+, a cation.
On the reverse is A-, ion, organic.
And K+; AP doesn’t happen without it.
The Na+ channels open, and indeed very fast
Into the cell, WSSSHHH, Na+ has amassed.
This sudden shift throws off equilibrium
So K+ must then get away from them.
Why is this so? What by this is meant?
Well, ions must abide by the electrical gradient.
But then Na+ channels begin to close
And now a new problem has arose.
Too much + on a chart causes a lump
So the cell compensates with the Na+/K+ pump!
By using this, combined with diffusion,
We see that the Na+ no longer makes and intrusion.
Without this spike in polarity
The neuron then returns to its original RP.
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