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Transcript 
Arrival of action
potential
Neurotransmitter
Receptor
Ca+
Post synaptic
membrane
Calcium ions cause
synaptic vesicles to
fuse with presynaptic
membrane
New action
potential
Exocytosis
Na+ (Cation)
channel
Synaptic Vesicle
Presynaptic
membrane
Membrane
depolarises causing
calcium ion channel
to open
Neurotransmitter
e.g. Acetylcholine
Synaptic cleft
Voltage gated Ca+
channel
Na
+
Neurotransmitters
diffuse across the
synaptic Cleft
Na+ ions diffuse in
Synaptic Transmission
Neurotransmitters
are reabsorbed by
presynapse or are
broken down by
enzymes
Ca+ ions diffuse in
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