Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neurobiology > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

What is the function of ACh and how is it removed from the synaptic cleft?

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

What are the two major typed of AChRs?

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

What are the structural and functional differences between AChRs?

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

Facilitation

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

Depression

A

rapid decrease in synaptic strength during sustained synaptic activity

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

How long does synaptic depression last?

A

hundreds of milliseconds

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

mechanisms of synaptic depression

A

depletion of readily releasable pool (RRP) of synaptic vesicles
|
V
declined NT release

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

How is synaptic depression correlated to the amount of transmitter release?

A

more transmitter release = more depletion of readily releasable vesicles

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

Augmentation and Potentiation

A

after repeat synaptic activity, increase in synaptic strength over a longer time scale than synaptic facilitation

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

How long does augmentation last

A

over a few seconds

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

How long does potentiation last?

A

tens of seconds to minutes

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

Mechanisms of augmentation

A

elecation of presynaptic calcium levels

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

Synaptic Plasticity

A

the ability of synapses to strengthen or weaken synaptic transmission in response to neural activity over time

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

Short term plasticity

A

changes last for a few minutes or less

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Increased synaptic strength due to enhanced NT release leads to:

A

synaptic facilitation, augmentation, and potentiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Reduced synaptic strength due to decreased NT release leads to:

A

synaptic depression

17
Q

Long term plasticity

A

changes last for 30 minutes or more

18
Q

Long term potentiation

A

Increased synaptic strength due to increased AMAP receptors in postsynaptic cell surface

19
Q

Long term depression

A

decreases synaptic strength due to AMAP receptors in postsynaptic cell surface

20
Q

Synaptic facilitation

A

rapid increase in synaptic strength that occurs when two or more AP invade the presynaptic terminal within a few milliseconds of each other

21
Q

How long does synaptic facilitation last

A

tens of milliseconds

22
Q

What is the mechanism behind synaptic facilitation

A

calcium builds up by several AP arrive close together in time.
|
V
prolonged elevation of presynaptic calcium levels
|
V
more NT to be released by a subsequent presynaptic action potential

Neurobiology (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions