communication at the synapse Flashcards
1
Q
what are the general classes of synapse in the brain
A
electrical and chemical
2
Q
what ion is critical for neurotransmitter release
A
Ca2+
3
Q
what are the two catagories of neurotransmitter
A
small molecule neurotransmitter and neuropeptide
4
Q
which category of neurotransmitter is recycled
A
small molecule neurotransmitter
5
Q
which neurotransmitter will respond to low frequency stimuli
A
small molecule neurotransmitter
6
Q
what two things can happen when a neurotransmitter is detached from the pre-synaptic cleft
A
reuptake or broken down by enzymes
7
Q
what two types of receptors can ACh act on
A
muscarinic and nicotinic
8
Q
what do muscarinic receptors do
A
slows heart rate
9
Q
what do nicotinic receptors do
A
muscle contraction
10
Q
what is excitotoxicity
A
cell death due to enhanced activation
