8856921
Question 1
Question
Acetyl Choline always produces an EPSP.
Answer
- True
- False
Question 2
Question
Glutamate produces an IPSP.
Answer
- True
- False
Question 3
Question
Gaba produces an IPSP.
Answer
- True
- False
Question 4
Question
Choose the correct statements about methamphetamine.
Answer
-
It increases levels of noradrenaline, dopamine, and serotonin.
-
It blocks the reuptake of noradrenaline, dopamine, and serotonin.
-
It acts in reward centres and as such is highly addictive.
-
It stimulates the parasympathetic nervous system.
Question 5
Question
Choose the incorrect statement.
Answer
-
Acetylcholine activates stimulus gated Na+ channels, and can be found in NMJs and the brain.
-
Glutamate activates stimulus gated Na+ and Ca+ channels, and is the most common excitatory neurotransmitter in the CNS.
-
GABA activates Na+ and Cl- channels, and is the most common inhibitory neurotransmitter in the CNS.
Question 6
Question
A neuron can have >50,000 synapses at its input zone.
Answer
- True
- False
Question 7
Question
Local synaptic potential (EPSPs and IPSPs) summate.
Spatial summation is integration of inputs from [blank_start]different synaptic knobs[blank_end]. (Different localisation/[blank_start]local polarisations[blank_end] of input zone.)
Temporal summation is the integration of inputs from the [blank_start]same synaptic knob[blank_end] but from different, [blank_start]short time intervals[blank_end].
Answer
-
different synaptic knobs
-
local polarisations
-
same synaptic knob
-
short time intervals
Question 8
Question
Local polarisations last longer than action potentials. This allows temporal summation to be effective.
Answer
- True
- False
Question 9
Question
Converging networks can amplify signals. They have few control points and can therefore allow precise control.
Diverging networks provide redundancy, making sure there is a 'back up' should another transmission fail and assuring an action is carried out.
Answer
- True
- False
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