Synapses 0.0 / 5 ? BiologyHuman, animal and plant physiologyA2/A-levelCCEA Created by: JcatCreated on: 12-04-19 12:06 Primary transmitter substance in central nervous system Acetylcholine 1 of 5 Released at inhibitory synapses, causing negative ions to flow into post synaptic neurones - causes hyperpolarisation GABA 2 of 5 Stimulates release of acetylcholine and other neurotransmitters making an action potential more likely Nicotine 3 of 5 Blocks receptors, prevents synaptic transmission. Loss of muscle function Curare 4 of 5 Blocks calcium channels in presynaptic neurone, less transmitter is released and an action potential is less likely. Opiods 5 of 5
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