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A neuron fires when _____________________

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A neuron fires when _____________________

(a) action potential is achieved

(b) apoptosis is induced

(c) re-stimulation occurs

(d) stimulation ceases

I got this question in class test.

I would like to ask this question from Cellular Membranes in chapter Cellular Membranes of Cell Biology

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Correct answer is (a) action potential is achieved

Easy explanation: When the external stimulation is strong enough to reach the threshold value which is around -50 mV, the action potential is generated, and firing of the neurons occurs. This is actually the response to stimulus.

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