Neurones Flashcards
1
Q
Calcium
A
Allows fusion and release of neurotransmitter in the synaptic cleft
Causes polarisation/depolarisation
2
Q
AMPA = Quicker, smaller excitation
A
NDMA = Slower, larger excitation
3
Q
Main inhibitory neurotransmitter in the CNS ?
A
GABA
4
Q
GABA acts on which two receptors?
A
Ionotropic GABAa Receptor (operates a Cl- channel)
GABAb (Metabotropic receptor, often activates a potassium channel)
5
Q
Action of barbiturates
A
Enhances the GABAa receptor
6
Q
Glutamate causes…
A
Excitation of postsynaptic membrane potential
7
Q
GABA causes…
A
Inhibition of postsynaptic membrane potential
8
Q
What is a quanta?
A
The release of neurotransmitter from a single vesicle
