Some painkillers prevent neurotransmitters binding to receptors in a synapse. Explain how a signal is transmitted at a synapse and how the painkillers reduce the pain felt by the person

Signal transmission at the synapse.

Explanation:

At the synapse, an electrical signal arrives at the pre-synaptic terminal an triggers vessicles to release neurotransmitters into the synaptic cleft.

These neurotransmitters activate receptors in the post-synaptic neuron and produce electrical signals.

Pain killers work by by preventing damaged or injured cells from producing prostagladins. Prostagladin is released when cells in the body are injured or damaged.

answer; i believe the answer is hydraulic action;

yes? sounds right, but you didn’t ask a question.