Post-tetanic potentiation at a synapse is generated by a
A)high frequency of stimulation.
B)long period of time between stimuli.
C)high frequency of stimulation followed by a short break.
D)low frequency of stimulation followed by a short break.

Question

Quizplus · Accepted Answer

Post-tetanic potentiation is generated by a high frequency of stimulation followed by a short break. This results in an increase in the strength of the synapse and is thought to be due to an increase in the amount of calcium ions in the presynaptic terminal. A period of time between stimuli (option B) would not generate post-tetanic potentiation. A high frequency of stimulation alone (option A) does not generate post-tetanic potentiation unless followed by a pause. A low frequency of stimulation followed by a short break (option D) would not be sufficient to generate post-tetanic potentiation.

Post-Tetanic Potentiation at a Synapse Is Generated by a