Neurotransmitters Flashcards
1
Q
What is a neuron?
A
Electrically excitable cells that form the basis of the nervous system.
2
Q
Where do neurotransmitters go?
A
Neurotransmitters go from the presynaptic vessel to the postsynaptic receptor site.
3
Q
How wide is the synapse?
A
20 nanometres wide.
4
Q
What does Serotonin do?
A
Controls mood, sleep and appetite. If levels are too low it can cause depression. Antidepressants treat this by increasing the availability for serotonin at the postsynaptic receptor sites.
5
Q
What does dopamine do?
A
Controls attention span, learning and pleasure. If levels are too high, it can cause schizophrenia. Anti-psychotics treat this by blocking dopamine activity by blocking the dopamine receptor sites.
