Which sequence shows the CORRECT order of the firing of a neuron?
A)threshold,resting potential,refractory period,action potential
B)resting potential,threshold,action potential,refractory period
C)action potential,resting potential,refractory period,threshold
D)resting potential,threshold,refractory period,action potential

Question

Quizplus · Accepted Answer

The correct sequence of firing of a neuron is: resting potential, threshold, action potential, and refractory period. The neuron starts at resting potential, where it is polarized with a negative charge. When the stimulus reaches the threshold, it triggers an action potential, which causes the cell to depolarize and the charge inside the cell becomes positive. After the action potential reaches its peak, the cell undergoes a refractory period where it is unable to fire again until it returns to resting potential. Therefore, the correct sequence would be resting potential, threshold, action potential, and refractory period, which is shown in option B.

Which Sequence Shows the CORRECT Order of the Firing of a Neuron