Outline the process of synaptic transmission
-action potential reaches end of pre synaptic neuron at an axon terminal
-vesicles release neurotransmitters (called exocytosis) into synaptic cleft
-neurotransmitters diffuses across gap and binds to receptor sites in post synaptic neuron
-once activated an excitatory or inhibitory effect takes place following the process of summation
-excess neurotransmitter is taken up by the pre synaptic neuron
-vesicles are replenished with reused neurotransmitter
-any neurotransmitter still left in the synaptic cleft is broken down by enzymes
