The right response is An action potential cannot be stopped or cancelled once it has begun. A stimulus that is stronger than a threshold level, also known as the threshold stimulus, starts the action potential.
True statement about how an action potential is created. An action potential occurs if a neuron is hyperpolarized to the threshold level. sequence of events that occur after an action potential reaches its "threshold."
It's common to refer to a neuron as "firing" when it releases an action potential or nerve impulse. Specialized voltage-gated ion channel subtypes located inside the plasma membrane of a cell are responsible for producing action potentials.
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