Neurotransmitter bound to a postsynaptic neuron:
–Produces a continuous postsynaptic effect
–Blocks reception of additional “messages”
–Must be removed from its receptor
•Removal of neurotransmitters occurs when they:
–Are degraded by enzymes
–Are reabsorbed by astrocytes or the presynaptic terminals
–Diffuse from the synaptic cleft
Termination of Neurotransmitter Effects