An action potential in the postsynaptic neuron is generated when a nerve impulse reaches the presynaptic knob, causing calcium channels to open. This leads to synaptic vesicles fusing with the presynaptic membrane, releasing neurotransmitters into the synaptic cleft. The neurotransmitters bind to receptors on the postsynaptic membrane, opening sodium channels, causing sodium influx and depolarization, which triggers an action potential.
An action potential in the postsynaptic neuron is generated when a nerve impulse reaches the presynaptic knob, causing calcium channels to open. This leads to synaptic vesicles fusing with the presynaptic membrane, releasing neurotransmitters into the synaptic cleft. The neurotransmitters bind to receptors on the postsynaptic membrane, opening sodium channels, causing sodium influx and depolarization, which triggers an action potential.
| Front | Describe the sequence of events that occurs at a synapse that can result in an action potential being generated in post-synaptic neurone. |
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| Back | Transmission across synapse:
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