6 Questions
What is the threshold potential at which an action potential starts to occur?
+30/40 mV
What happens to the membrane potential during the falling phase of an action potential?
It becomes more negative
What is the role of the Na+/K+ transporters in the recovery phase of an action potential?
To restore the resting potential
What happens to the voltage-gated Na+ channels during the peak of an action potential?
They open and allow Na+ ions to rush in
What is the state of the membrane during the refractory period?
It is unable to fire
What is the resting membrane potential of a neuron?
-70 mV
Test your knowledge of neuron action potential, ion channels, and the role of Na+-K+-ATPase in restoring balance. This quiz covers the activation and inactivation gates of VGSCs and VGPCs, and the movement of ions during an action potential.
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