Neurotransmission Flashcards
1
Q
what is Synaptic transmission
A
Synaptic transmissionis the process whereby a chemical messenger (neurotransmitter) crosses the synapse from one neuron (also called nerve cell) to another. It is the nervous system’s way of communicating.
2
Q
what are the steps of Synaptic transmission
A
- Neurotransmitters contained inside vesicles, inside terminal buttons of presynaptic neuron move towards the membrane (towards the outside)
- Vesicles break open into the synapse, releasing neurotransmitters
- Neurotransmitters bind with receptors on postsynaptic neuron
3
Q
what is Neurotransmission
A
Neurotransmissionis the broader picture of how messages are sent from neuron to neuron throughout the brain (however some people use ‘neurotransmission’ to mean all of it including synaptic transmission).
4
Q
what are the steps of Neurotransmission
A
- An electrical signal passes down the axon of the neuron
- This releases neurotransmitters into the synapse
- The neurotransmitter either excites or inhibits the neuron
- If the neuron is sufficiently excited, it will send an electrical signal down the axon, and the message continues