Q.1.
What is the normal resting potential of a neuron cell membrane?
Q.2.
Which ions are involved in an action potential?
Q.3.
At which point on the diagram does depolarisation of the axon occur? 
sc-8 sb-4-Action Potentialimg_no 137.jpg
Q.4.
The sodium potassium pump restores the resting potential. By which process does this work? 
Q.5.
When a neuron is not engaged in an impulse.
Q.6.
A membrane potential becoming less negative is called
sc-8 sb-4-Action Potentialimg_no 138.jpg
Q.7.
In resting potential, neurons have more _________ on the outside of the cell membrane.
Q.8.
What number(s) on the graph represents the THRESHOLD level of stimulus?
sc-8 sb-4-Action Potentialimg_no 139.jpg
Q.9.
When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.
sc-8 sb-4-Action Potentialimg_no 140.jpg
Q.10.
Why is -55 mV a significant number?
Q.11.
The sodium-potassium pump....
Q.12.
At what stage are both ions present in large concentrations INSIDE the neuron?
Q.13.
What number on the graph represents the Hyperpolarization phase?
sc-8 sb-4-Action Potentialimg_no 141.jpg
Q.14.
When is the potassium channel open?
Q.15.
Action potentials run along the ______ from ______ to ________.
Q.16.
An action potential is __________ in nature, with the inside of the neuron being more ________.
Q.17.
As the neuron fires, there's a reversal in _____ as the axon undergoes ________.