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This time you get into a snail brain neuron that is completely quiet. The cell doesn't even begin to fire action potentials when you inject depolarizing current, so you question yourself if you are actually in a neuron. Nevertheless, you briefly hyperpolarize thecell, and right after the hyperpolarization stops, the cell fires a few action potentials that have a quite large amplitude and then the cell becomes quite again. What could be going on here? Your traces kind of look like this:

without stimulation the cell was silent Et tv hyperpolarization

Answer choices are: (*NOTE: MORE THAN ONE ANSWER CAN BE CORRECT, PLEASE SELECT ALL CORRECT ANSWERS)

The resting membrane potential is above threshold potential, while voltage gated sodium channels remain deactivated at the ba

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Answer #1

Right after the hyperpolarization stops, the cell fires a few action potentials that have a quite large amplitude and then the cell becomes quite again. This happens because the resting potential is much below the threshold potential so that when depolarisation of the cell occurs, it will not reach the threshold potential.

Hence third option is the correct answer.

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