Neurotransmitter action at the next neuron is sometimes described as acting like a lock-and-key system, with neurotransmitters being the key and _____ being the lock.

Question

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Neurotransmitters interact with receptor sites on the post-synaptic neuron in a specific manner, similar to a key fitting into a lock, to transmit signals across the synaptic gap.

Neurotransmitter Action at the Next Neuron Is Sometimes Described as Acting