52.Since neurotransmitters
arenot consumed in the
synapticprocess, whatarethe
mechanisms to reducetheir
concentrationsin thesynaptic
cleft afterthey have been
used?

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Since the binding of
to the post synaptic is
reversible, after these
perform their role they be
eliminated from the .
Neurotransmitters can then bind
specific proteins that carry back to
the axon came from in a
called neurotransmitter re-uptake. They
also be destroyed by
enzymes, like acetylcholinesterase, an
that destroys acetylcholine. Or
can simply diffuse out the
synaptic cleft.