Neural Integration Flashcards

You may prefer our related Brainscape-certified flashcards:
0
Q

What is neural integration?

A

Decision making.

Neurones receive info in EPSPs or IPSPs and integrate in to generate an action potential or not.

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

What is saltatory conduction?

A

In myelinated neurones the action potential jumps from one node of ranvier to another as the it cannot pass through the myelin. This is much faster and significantly enhanced.

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

What are synapses on the soma (axo-somatic) often?

A

Inhibitory

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

What are the types of summation?

A

Temporal- addition of two close occurring EPSP

Spatial- 2 EPSP below the threshold= 1 above

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

Where does integration occur?

A

In the axon hillock

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

Which synapse connection is modulatory and control the NT release?

A

Axo-axonic: controls the calcium influx in the presynaptic neurone

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

Which synapse connection occurs in the dendritic spines and shafts and is commonly excitatory?

A

Axo-dendritic

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

What are the five types of synaptic connections in the CNS?

A

Axodendritic, axo somatic, axoaxonic, soma-somatic and dendro-dendritic.

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

What do inhibitory neurones do?

A

Decrease the activity of the target cells.

Eg. GABA

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

What do excitatory neurones do?

A

Increase the activity of the target cells.

Eg. Glutamate

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

What does a higher frequency mean?

A

More NT release which produces a stronger signal.

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

What is the downside of the all-or-nothing firing or an action potential?

A

Little information can be carried in the signal.

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

What happens when NT builds up is more as released?

A

An ongoing response is generated

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

How can activity of synapse be observed?

A

Via drugs or stimulation

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