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Synapses
By Nicole Gary
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Last updated 4 months ago
17 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
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Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
What is another name for a nerve cell?
Schwann cell
axon
dendron
neuron
What is the region where nerve cells meet called?
synapse
cleft
junction
axon terminal
Another name for a nerve impulse is
electrical signal
axon terminal
neurotransmitter
action potential
If Cell 1 is a receptor and Cell 2 is a cell in the CNS, then a nerve impulse passes from the
Dendrites of Cell 1 to the axon terminals of Cell 2
Axon terminals of Cell 2 to the dendrites of Cell 1
Axon terminals of Cell 1 to the dendrites of Cell 2
Dendrites of Cell 2 to the axon terminals of Cell 1
Question 5
5.
Which
letter
represents a neurotransmitter?
Question 6
6.
Which
letter
represents a vesicle?
Question 7
7.
Which
letter
represents a neurotransmitter receptor?
Question 8
8.
Which
letter
represents a voltage-gated calcium channel?
Question 9
9.
Which
number
represents the post-synaptic membrane?
Question 10
10.
Which
number
represents the pre-synaptic membrane?
Question 11
11.
Which
number
represents the synaptic cleft?
Question 12
12.
Which
letter OR number
represents the axon terminal?
Question 13
13.
What happens in an axon terminal when an action potential arrives at the presynaptic membrane?
calcium ions diffuse in
sodium ions diffuse in
calcium ions diffuse out
sodium ions diffuse out
What happens when calcium ions diffuse into an axon terminal?
voltage-gated sodium channels open
vesicles release neurotransmitter by exocytosis
voltage-gated sodium channels close
neurotransmitter is pumped from the post-synaptic membrane
How does neurotransmitter cross the synaptic cleft?
osmosis
carrier mediated transport
exocytosis
simple diffusion
What causes sodium ion channels on the postsynaptic membrane to open?
enzymatic digestion of the neurotransmitter bound to the channel
arrival of an action potential at the channel
binding of calcium ions to the channel itself
binding of the neurotransmitter to the channel itself
A nerve impulse is transmitted in which direction
1 to 2 to 3
3 to 2 to 1
