Postsynaptic potentials and synaptic integration & Integration and modification of synaptic events Flashcards

1
Q

How are chemical synapses graded?

A

by the amount of neurotransmitter released not the amount of voltage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Chemical synapses can be what 2 things depending on how the neuron after the synapse is affected.

A

excitatory

inhibitory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Chemical synapses can be either excitatory or inhibitory depending upon what?

A

how the neuron after the synapse is affected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does EPSP stand for?

A

excitatory post synaptic potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

If an ion channel opens it results in a graded depolarization. If the depolarization is great enough it results in an action potential.

A

EPSP- excitatory post synaptic potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

In EPSP if an ion channel opens what does it result in?

A

graded depolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In EPSP if the depolarization is great enough what results?

A

an action potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does IPSP stand for?

A

inhibitory post synaptic potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

If the binding of neurotransmitter results in hyperpolarization (usually due to chloride ions flowing in or potassium flowing out)

A

IPSP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

In IPSP what does the binding of neurotransmitter result in?

A

hyperpolarization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How can excitatory synapses increase the activity of the postsynaptic neuron?

A

add together

summate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When multiple waves of neurotransmitter are released by one or more presynaptic neurons very quickly but at seperate times. Multiple EPSPs add up to increase the possibility of an action potential

A

temporal summation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

In temporal summation what add up to increase the possibility of an action potential?

A

multiple EPSPs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

multiple presynaptic neurons or multiple axon terminals of the same neuron are releasing large amounts of neurotransmitter at the same time which results in summation and potentially an action potential.

A

spatial summation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly