What is the primary characteristic of an end plate potential?

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Signal transmissionAll-or-none responseA decrease in membrane potential leading to depolarizationAn increase in membrane potential causing hyperpolarizationNone of the above

Explanation

The end plate potential involves depolarization of the muscle membrane at the neuromuscular junction, which is essential for triggering muscle contraction. It is not related to signal propagation, the all-or-none principle, or hyperpolarization.