Synaptic transmission
- Created by: Georgia56
- Created on: 27-11-17 09:49
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An action potential arrives at the presynaptic membrane.
Depolarisation of the membrane causes the voltage-gated calcium (ca2+) channels to open.
Calcium ions diffuse into the synaptic knob.
This causes vesicles containing neurotransmitters to move to, and fuse with, the presynaptic membrane. Acetylcholine is released by exocytosis.
Acetylcholine diffuses across the synaptic cleft…
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