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Biopsychology revision

What happens when electrical impulse reaches terminal button...
Synaptic vesicles containing neurotransmitter are stimulated to move to end
of neurone
Vesicle merges with membrane, releasing neurotransmitter into the synaptic
Neurotransmitter binds with complimentary receptor site (lock and key
model) through diffusion
This stimulates the next neurone to…

Page 2

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When a neuroleptic drug is present, the receptor sites are blocked, preventing
their stimulation so less action potential is passed on through the neurone.

When someone has an overdose of MAOIs (Monoamine Oxidase Inhibitors) the
enzyme that normally breaks down neurotransmitters (Dopamine (DA), Serotonin
(5-HT) and Noradrenalin (NA)) is blocked.…




these notes are ****

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