When an excitatory neurotransmitter binds to its receptor on the postsynaptic membrane, what immediate effect occurs?

Question

Answer

It prevents the depolarization of the neurone.

Answer

It opens ion channels allowing an influx of positive ions such as sodium, leading to depolarization.

Answer

It directly transmits the impulse to the next neurone without further ion changes.

Answer

It causes the vesicles to release more neurotransmitter.

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