At threshold, axons will . At threshold, axons will . Always generate an action potential. Usually be at the end of their absolute refractory period. Begin to hyperpolarize the membrane potential. Likely generate an action potential if refractory periods have elapsed.

At threshold, axons will "likely generate an action potential if refractory periods have elapsed".

Explanation:

The threshold voltage in an axon is typically the threshold potential, which is a potential membrane value between -50 and -55 mV but can differ based on numerous factors.The resting membrane potential of a neuron (–70 mV) can be altered to either increase or decrease the likelihood of sodium and potassium ions hitting threshold.

The potential for action is an eruption of electric activity generated by a depolarizing current. The potential threshold for intervention is assumed to be the lowest in the axon but was higher in the axon than at other neuronal positions when calculated using traditional methods on rat cortical pyramidal neurons.

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